[Go][CI]: Run `gofmt` check in CI

[yevgenypats]

Describe the enhancement requested

This would help save contributors and reviewers time so they can focus on code logic and bugs and offload formatting issues to the CI.

Component(s)

Go

[singh1203]

Hello @yevgenypats Is this issue still available to work on?
If yes I would love to work on it.
cc - @zeroshade

[zeroshade]

I believe this is still available to work on. Go for it!

[kou]

Done by #92.