`goheader` linter is extremely slow because of git subprocesses

[silverwind]

Welcome

• This is not a request to create or integrate a new linter; those belong in Discussions.
• Yes, I've searched similar issues on GitHub and didn't find any.
• I agree to follow this project's Code of Conduct

How did you install golangci-lint?

go install

Your feature request related to a problem? Please describe

The goheader linter spawns 2 git subprocesses per linted file, leading to extremely slow lint performance. See denis-tingaikin/go-header#70.

Describe the solution you'd like

Add a improved version of goheader into golangci-lint that does not spawn git subprocesses for each file.

Describe alternatives you've considered

Our current workaround is a custom script to replace goheader, but this isn't ideal as it's not part of golangci-lint.

Additional context

No response

Supporter

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