Use actions/setup-go@v5 in github actions

[kke]

Description

Use actions/setup-go@v5 instead of v3.

Closes #3795

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

How Has This Been Tested?

• Manual test
• Auto test added

Checklist:

• My code follows the style guidelines of this project
• My commit messages are signed-off
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

[twz123]

Maybe better use with: {cache: false} for now? We'd need to inspect our own caching and replace that. Since there's actions/cache/save and actions/cache/restore available nowadays, there might be some potential to completely rework this.

[kke]

I think we're manually caching just the docker-builder deps like:

      - name: Cache GOMODCACHE
        uses: actions/cache@v3
        with:
          key: unittests-k0s-linux-amd64-gomodcache-${{ hashFiles('go.sum') }}
          restore-keys: |
            build-k0s-linux-amd64-gomodcache-${{ hashFiles('go.sum') }}
          path: |
            build/cache/go/mod

There was one which cached ~/go/pkg/mod which I now removed.

We could of course stop using setup-go altogether and just run everything through the builder.

[twz123]

Was GO_VERSION ever required for something else than this? If not, it could be removed from .github/workflows/prepare-build-env.sh.

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The PR is marked as stale since no activity has been recorded in 30 days

[github-actions]

The PR is marked as stale since no activity has been recorded in 30 days

[github-actions]

The PR is marked as stale since no activity has been recorded in 30 days