Bump handlebars from 4.1.0 to 4.7.7

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.1.0 to 4.7.7.
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/handlebars-lang/handlebars.js/blob/master/release-notes.md)
- [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.0...v4.7.7)

---
updated-dependencies:
- dependency-name: handlebars
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

package-lock.json

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       "dev": true
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+    "@isomorphic-git/idb-keyval": {
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+      "resolved": "https://registry.npmjs.org/@isomorphic-git/idb-keyval/-/idb-keyval-3.3.2.tgz",
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+    "@isomorphic-git/lightning-fs": {
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+      "resolved": "https://registry.npmjs.org/@isomorphic-git/lightning-fs/-/lightning-fs-4.4.1.tgz",
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+        "isomorphic-textencoder": "1.0.1",
+        "just-debounce-it": "1.1.0",
+        "just-once": "1.1.0"
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     "@istanbuljs/load-nyc-config": {
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       "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz",
@@ -10543,6 +10559,15 @@
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+    "@types/isomorphic-git__lightning-fs": {
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+      "resolved": "https://registry.npmjs.org/@types/isomorphic-git__lightning-fs/-/isomorphic-git__lightning-fs-4.4.2.tgz",
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+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
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     "@types/istanbul-lib-coverage": {
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@@ -19153,6 +19178,11 @@
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       "dev": true
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+    "fast-text-encoding": {
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+      "resolved": "https://registry.npmjs.org/fast-text-encoding/-/fast-text-encoding-1.0.3.tgz",
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+    },
     "fastq": {
       "version": "1.13.0",
       "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.13.0.tgz",
@@ -22055,9 +22085,9 @@
           "dev": true
         },
         "uglify-js": {
-          "version": "3.14.3",
+          "version": "3.15.2",
-          "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.14.3.tgz",
+          "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.15.2.tgz",
-          "integrity": "sha512-mic3aOdiq01DuSVx0TseaEzMIVqebMZ0Z3vaeDhFEh9bsc24hV1TFvN74reA2vs08D0ZWfNjAcJ3UbVLaBss+g==",
+          "integrity": "sha512-peeoTk3hSwYdoc9nrdiEJk+gx1ALCtTjdYuKSXMTDqq7n1W7dHPqWDdSi+BPL0ni2YMeHD7hKUSdbj3TZauY2A==",
           "dev": true,
           "optional": true
         },
@@ -24325,6 +24355,14 @@
         "simple-get": "^3.0.2"
       }
     },
+    "isomorphic-textencoder": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/isomorphic-textencoder/-/isomorphic-textencoder-1.0.1.tgz",
+      "integrity": "sha512-676hESgHullDdHDsj469hr+7t3i/neBKU9J7q1T4RHaWwLAsaQnywC0D1dIUId0YZ+JtVrShzuBk1soo0+GVcQ==",
+      "requires": {
+        "fast-text-encoding": "^1.0.0"
+      }
+    },
     "isstream": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz",
@@ -29032,6 +29070,16 @@
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       "dev": true
     },
+    "just-debounce-it": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/just-debounce-it/-/just-debounce-it-1.1.0.tgz",
+      "integrity": "sha512-87Nnc0qZKgBZuhFZjYVjSraic0x7zwjhaTMrCKlj0QYKH6lh0KbFzVnfu6LHan03NO7J8ygjeBeD0epejn5Zcg=="
+    },
+    "just-once": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/just-once/-/just-once-1.1.0.tgz",
+      "integrity": "sha512-+rZVpl+6VyTilK7vB/svlMPil4pxqIJZkbnN7DKZTOzyXfun6ZiFeq2Pk4EtCEHZ0VU4EkdFzG8ZK5F3PErcDw=="
+    },
     "keccak": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/keccak/-/keccak-3.0.2.tgz",
@@ -36166,7 +36214,6 @@
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           "resolved": false,
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-          "dev": true,
           "requires": {
             "lodash": "^4.17.11"
           }
@@ -36226,7 +36273,6 @@
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           "resolved": false,
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-          "dev": true,
           "optional": true
         },
         "commondir": {
@@ -36409,26 +36455,6 @@
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           "dev": true
         },
-        "handlebars": {
-          "version": "4.1.0",
-          "resolved": false,
-          "integrity": "sha512-l2jRuU1NAWK6AW5qqcTATWQJvNPEwkM7NEKSiv/gqOsoSQbVoWyqVEY5GS+XPQ88zLNmqASRpzfdm8d79hJS+w==",
-          "dev": true,
-          "requires": {
-            "async": "^2.5.0",
-            "optimist": "^0.6.1",
-            "source-map": "^0.6.1",
-            "uglify-js": "^3.1.4"
-          },
-          "dependencies": {
-            "source-map": {
-              "version": "0.6.1",
-              "resolved": false,
-              "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-              "dev": true
-            }
-          }
-        },
         "has-flag": {
           "version": "3.0.0",
           "resolved": false,
@@ -36638,8 +36664,7 @@
         "lodash": {
           "version": "4.17.11",
           "resolved": false,
-          "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
+          "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg=="
-          "dev": true
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         "lodash.flattendeep": {
           "version": "4.4.0",
@@ -36721,8 +36746,7 @@
         "minimist": {
           "version": "0.0.10",
           "resolved": false,
-          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=",
+          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8="
-          "dev": true
         },
         "mkdirp": {
           "version": "0.5.1",
@@ -36793,7 +36817,6 @@
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           "resolved": false,
           "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
-          "dev": true,
           "requires": {
             "minimist": "~0.0.1",
             "wordwrap": "~0.0.2"
@@ -37142,8 +37165,6 @@
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           "resolved": false,
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-          "dev": true,
-          "optional": true,
           "requires": {
             "commander": "~2.17.1",
             "source-map": "~0.6.1"
@@ -37153,7 +37174,6 @@
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               "resolved": false,
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-              "dev": true,
               "optional": true
             }
           }
@@ -37192,8 +37212,7 @@
         "wordwrap": {
           "version": "0.0.3",
           "resolved": false,
-          "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc=",
+          "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
-          "dev": true
         },
         "wrap-ansi": {
           "version": "2.1.0",