ci: add protocol test workflow

[glittercowboy]

Summary

• Add a PR and main push Test workflow for protocol-go.
• Run go test ./... on Go 1.25.

Verification

• go test ./...

Post-merge

• Require the Test status check on protected main.

Summary by CodeRabbit

• Chores
  • Automated test execution now runs on all changes to the main branch, ensuring continuous code quality validation.

[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

📝 Walkthrough

Walkthrough

A new GitHub Actions workflow file is added to automate running the Go test suite. The workflow is triggered on pushes to main and pull requests into main, sets up Go 1.25, and executes go test ./... across all packages.

Changes

Cohort / File(s)	Summary
CI/CD Workflow Configuration .github/workflows/test.yml	Added GitHub Actions workflow that automatically runs Go tests on pushes to main and pull requests, with setup for Go 1.25.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰✨ A workflow so fine, with tests in a line,
Go 1.25 dancing, keeping code divine!
Main branch stays strong with CI's helping hand,
Quality assured across all the land! 🧪🚀

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'ci: add protocol test workflow' directly matches the main objective of adding a CI test workflow to the protocol-go repository.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/add-ci-required-checks

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