feat: Json type optimization

[jachym-tousek-keboola]

Jira: https://keboola.atlassian.net/browse/PSGO-734

Changes:

• Optimized column type json using fastjson
• Added more tests to ensure no behavior changes
• Improved behavior for form data

---

Benchmarks

The BenchmarkColumn_Path benchmark is the relevant one here.

Old implementation:

/code > go test ./internal/pkg/service/stream/mapping/table/column/renderer_benchmark_test.go -bench=. -benchmem
goos: linux
goarch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
BenchmarkColumn_Path-8                    161614              8795 ns/op            5131 B/op        105 allocs/op
BenchmarkColumn_Template_Jsonnet-8         61544             22324 ns/op           13993 B/op        223 allocs/op
BenchmarkColumn_UUID-8                    960573              1052 ns/op             568 B/op          6 allocs/op
PASS
ok      command-line-arguments  4.101s

New implementation with fastjson:

/code > go test ./internal/pkg/service/stream/mapping/table/column/renderer_benchmark_test.go -bench=. -benchmem
goos: linux
goarch: amd64
cpu: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
BenchmarkColumn_Path-8                    492908              2574 ns/op            1908 B/op         26 allocs/op
BenchmarkColumn_Template_Jsonnet-8         63018             20630 ns/op           13973 B/op        223 allocs/op
BenchmarkColumn_UUID-8                   1000000              1056 ns/op             568 B/op          6 allocs/op
PASS
ok      command-line-arguments  3.864s

[jachym-tousek-keboola]

reqCtx caches the parsed json in case it is needed for other columns so we need to create a new one for each CSVValue call, otherwise json parsing is cached, making the benchmark irrelevant.

[jachym-tousek-keboola]

Extra tests for application/x-www-form-urlencoded since the original renderer implementation is no longer covered by json tests + the results changed because of ParseQuery improvements.

[michaljurecko]

LGTM