cmd/evm: correct `alloc` for `t8n` testdata (#26822)

Fixes a minor error in the testdata

cmd/evm/testdata/9/env.json

@@ -1,7 +1,7 @@
 {
   "currentCoinbase": "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
   "currentDifficulty": "0x20000",
-  "currentGasTarget": "0x1000000000",
+  "currentGasLimit": "0x1000000000",
   "currentBaseFee": "0x3B9ACA00",
   "currentNumber": "0x1000000",
   "currentTimestamp": "0x04"

cmd/evm/testdata/9/readme.md

@@ -44,10 +44,10 @@ $ dir=./testdata/9 && ./evm t8n --state.fork=London --input.alloc=$dir/alloc.jso
    "nonce": "0x1"
   },
   "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba": {
-   "balance": "0xbfc02677a000"
+   "balance": "0x5bb10ddef6e0"
   },
   "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b": {
-   "balance": "0xff104fcfea7800",
+   "balance": "0xff745ee8832120",
    "nonce": "0x2"
   }
  }