feat: go-test workflow for mono-repos

[fredbi]

Change type

Please select: 🆕 New feature or enhancement|🔧 Bug fix'|📃 Documentation update

Short description

Fixes

Full description

Checklist

• I have signed all my commits with my name and email (see DCO. This does not require a PGP-signed commit
• I have rebased and squashed my work, so only one commit remains
• I have added tests to cover my changes.
• I have properly enriched go doc comments in code.
• I have properly documented any breaking change.

[Copilot]

Pull request overview

This PR adds support for testing Go mono-repositories by introducing a new reusable workflow (go-test-monorepo.yml) that can handle multiple Go modules within a single repository. The workflow includes automatic mono-repo detection, module-aware linting using golangci-lint's experimental feature, and version-specific test execution based on Go's native go test work support introduced in Go 1.25.

• Creates a sample mono-repo structure for testing CI workflows
• Adds reusable workflow for mono-repo testing with automatic module detection
• Enables go.work files by uncommenting them in .gitignore

Reviewed changes

Copilot reviewed 8 out of 10 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
.github/workflows/go-test-monorepo.yml	Main reusable workflow implementing mono-repo test support with automatic detection, golangci-lint experimental features, and version-aware test execution
.github/workflows/local-go-test-monorepo.yml	Local workflow file that calls the reusable mono-repo workflow
sample-monorepo/pkg/pkg.go	Sample package implementation with a simple function and a fuzzable function for testing
sample-monorepo/pkg/pkg_test.go	Unit and fuzz tests for the sample package using testify/v2 assertions
sample-monorepo/go.mod	Go module definition for the sample mono-repo module
sample-monorepo/go.sum	Dependency checksums for the sample mono-repo
sample-monorepo/doc.go	Package documentation for the sample mono-repo
go.work	Go workspace file enabling multi-module support
.gitignore	Uncomments go.work and go.work.sum to allow workspace files in version control
.claude/CLAUDE.md	Adds reference to GitHub Actions skills documentation for Claude Code

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (4a76752) to head (993817d).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

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  Coverage   100.00%   100.00%           
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  Files            2         3    +1     
  Lines            8        14    +6     
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+ Hits             8        14    +6     

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[Copilot]

Pull request overview

Copilot reviewed 10 out of 12 changed files in this pull request and generated no new comments.

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