Add check in test workflow

.github/workflows/checks.yml

@@ -40,6 +40,8 @@ jobs:
         run: npm run test:inheritance
       - name: Check proceduraly generated contracts are up-to-date
         run: npm run test:generation
+      - name: Check custom errors have unique names
+        run: npm run test:errors-uniqueness
       - name: Compare gas costs
         uses: ./.github/actions/gas-compare
         with:

package.json

@@ -27,6 +27,7 @@
     "version": "scripts/release/version.sh",
     "test": "hardhat test",
     "test:inheritance": "scripts/checks/inheritance-ordering.js artifacts/build-info/*",
+    "test:errors-uniqueness": "scripts/checks/custom-errors-duplication.js artifacts/build-info/*",
     "test:generation": "scripts/checks/generation.sh",
     "gas-report": "env ENABLE_GAS_REPORT=true npm run test",
     "slither": "npm run clean && slither ."