.github: Bump actions/setup-go from 2.1.5 to 3

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 2.1.5 to 3.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](https://github.com/actions/setup-go/compare/v2.1.5...v3)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
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