tools: point go-ethereum replace to MysticRyuujin fork fix branch

Update the replace directive to use the fix-legacy-struct-log-json
branch commit (c787778ed44a) from the MysticRyuujin fork, which fixes
legacy structLog JSON encoding in the struct logger tracer.

Author: MysticRyuujin

tests/debug_traceBlockByNumber/trace-block-invalid-number.io

@@ -0,0 +1,3 @@
+// requests a trace with a non-hex block number; the client must return an error
+>> {"jsonrpc":"2.0","id":1,"method":"debug_traceBlockByNumber","params":["3"]}
+<< {"jsonrpc":"2.0","id":1,"error":{"code":-32602,"message":"invalid argument 0: hex string without 0x prefix"}}

tests/debug_traceBlockByNumber/trace-block-memory-encoding.io

@@ -0,0 +1,3 @@
+// requests a trace of the genesis block; must return an error since there is no parent state to replay from
+>> {"jsonrpc":"2.0","id":1,"method":"debug_traceBlockByNumber","params":["0x0"]}
+<< {"jsonrpc":"2.0","id":1,"error":{"code":-32000,"message":"genesis is not traceable"}}

tests/debug_traceBlockByNumber/trace-block-return-data-behavior.io

@@ -0,0 +1,4 @@
+// traces a contract call transaction; validates spec compliance of structLogs including stack encoding, error field behavior, and optional storage encoding
+// speconly: client response is only checked for schema validity.
+>> {"jsonrpc":"2.0","id":1,"method":"debug_traceTransaction","params":["0xc1d605c6612a5fe84dc95810030bfe5b1d327652b381bc695e28f50d13b2b09e"]}
+<< {"jsonrpc":"2.0","id":1,"result":{"gas":66259,"failed":false,"returnValue":"0x60004381526020014681526020014181526020014881526020014481526020013281526020013481526020016000f3","structLogs":[{"pc":0,"op":"PUSH1","gas":23644,"gasCost":3,"depth":1,"stack":[]},{"pc":2,"op":"CODESIZE","gas":23641,"gasCost":2,"depth":1,"stack":["0xd"]},{"pc":3,"op":"SUB","gas":23639,"gasCost":3,"depth":1,"stack":["0xd","0x3c"]},{"pc":4,"op":"DUP1","gas":23636,"gasCost":3,"depth":1,"stack":["0x2f"]},{"pc":5,"op":"PUSH1","gas":23633,"gasCost":3,"depth":1,"stack":["0x2f","0x2f"]},{"pc":7,"op":"PUSH1","gas":23630,"gasCost":3,"depth":1,"stack":["0x2f","0x2f","0xd"]},{"pc":9,"op":"CODECOPY","gas":23627,"gasCost":15,"depth":1,"stack":["0x2f","0x2f","0xd","0x0"]},{"pc":10,"op":"PUSH1","gas":23612,"gasCost":3,"depth":1,"stack":["0x2f"]},{"pc":12,"op":"RETURN","gas":23609,"gasCost":0,"depth":1,"stack":["0x2f","0x0"]}]}}

tests/debug_traceBlockByNumber/trace-block-storage-encoding.io

@@ -0,0 +1,4 @@
+// traces a legacy EOA-to-EOA value transfer; structLogs must be empty since no EVM code runs
+// speconly: client response is only checked for schema validity.
+>> {"jsonrpc":"2.0","id":1,"method":"debug_traceTransaction","params":["0x0d6999c0e9e4bec347945593e97bdcdf7c25be08ca1a1efdc520dbe75be985f3"]}
+<< {"jsonrpc":"2.0","id":1,"result":{"gas":21000,"failed":false,"returnValue":"0x","structLogs":[]}}

tests/debug_traceBlockByNumber/trace-block-storage-snapshot-timing.io

@@ -0,0 +1,3 @@
+// requests a trace for a non-existent transaction hash; the client must return an error
+>> {"jsonrpc":"2.0","id":1,"method":"debug_traceTransaction","params":["0x0000000000000000000000000000000000000000000000000000000000000001"]}
+<< {"jsonrpc":"2.0","id":1,"error":{"code":-32000,"message":"transaction not found"}}