chore(CI): add gci formatter

[Elbehery]

This PR add gci import formatter to this repo.

See etcd-io/bbolt#988 (comment)

cc @ahrtr @ivanvc

Please read https://github.com/etcd-io/etcd/blob/main/CONTRIBUTING.md#contribution-flow.

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[ivanvc]

Thanks for the pull request, @Elbehery. It looks like you're bumping golangci lint to v2, which is incompatible with the configuration file. Could you revert this, to fix the CI failure? Thanks again :)

[Elbehery]

Thanks @ivanvc

So I had to bump golangci lint, so that I can add gci

you find details in this CI run

[ivanvc]

If you do so, you need to update the configuration file. Please review the CI failure.