core/vm: Rename SHA3 instruction to KECCAK256 (#23976)

This was proposed in 2016, Solidity uses this since 2017, and evmone and other VMs use the keccak256 name. This brings geth in line with those.

core/vm/instructions_test.go

@@ -558,7 +558,7 @@ func BenchmarkOpMstore(bench *testing.B) {
 	}
 }
 
-func BenchmarkOpSHA3(bench *testing.B) {
+func BenchmarkOpKeccak256(bench *testing.B) {
 	var (
 		env            = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
 		stack          = newstack()
@@ -573,7 +573,7 @@ func BenchmarkOpSHA3(bench *testing.B) {
 	bench.ResetTimer()
 	for i := 0; i < bench.N; i++ {
 		stack.pushN(*uint256.NewInt(32), *start)
-		opSha3(&pc, evmInterpreter, &ScopeContext{mem, stack, nil})
+		opKeccak256(&pc, evmInterpreter, &ScopeContext{mem, stack, nil})
 	}
 }