Consider adding goccy/go-json to whitelist

[ccoVeille]

I looked on GitHub about the packages commonly excluded from musttag

https://github.com/search?q=path%3A%2F.golangci*%20%22musttag%3A%22%20%22functions%22%20-path%3A*reference*%20&type=code

I found that https://github.com/goccy/go-json is frequently excluded from musttag

musttag:
    functions:
      - name: github.com/goccy/go-json.Marshal
        tag: json
      - name: github.com/goccy/go-json.MarshalContext
        tag: json
      - name: github.com/goccy/go-json.Unmarshal
        tag: json
      - name: github.com/goccy/go-json.UnmarshalContext
        tag: json

Source: https://github.com/heffcodex/goutil/blob/e5bab38739f47b7b9769fb1172543c59f50d331d/.golangci.yml#L140

The lib is very popular:

cc @goccy, hi 👋, great lib BTW

[ccoVeille]

I also found https://github.com/json-iterator/go with that search BTW

musttag:
    functions:
      # The full name of the function, including the package.
      - name: github.com/json-iterator/go.Marshal
        # The struct tag whose presence should be ensured.
        tag: json
        # The position of the argument to check.
        arg-pos: 0

Source: https://github.com/releaseband/go-progress-bar/blob/7f3fe8277abe1c6c411c38350071a08faf672b82/.golangci.yaml#L211

maybe musttag could whitelist it too.

But the project is almost unmaintained, but widely used: