json.marshall faster

[0penMax]

golang 1.19
goarch: amd64
pkg: structhash
cpu: AMD Ryzen 7 1700 Eight-Core Processor
BenchmarkSimpleJSON-16 1894560 628.8 ns/op
BenchmarkSimpleDump-16 499706 2418 ns/op
BenchmarkFullJSON-16 299988 3937 ns/op
BenchmarkFullDump-16 79993 14874 ns/op
BenchmarkTagsJSON-16 2727174 441.4 ns/op
BenchmarkTagsDump-16 480078 2418 ns/op