fix: for code scanning alert no. 3: Workflow does not contain permissions

[VisualBean]

Potential fix for https://github.com/ByteBardOrg/AsyncAPI.NET/security/code-scanning/3

Add an explicit permissions block to the build job in .github/workflows/ci.yml, setting only the minimum needed scope.
For this job, the best minimal safe setting is:

• contents: read

This preserves existing functionality (checkout + .NET build/test) while ensuring the token cannot write unless explicitly granted later.

Change location:

• File: .github/workflows/ci.yml
• Region: under jobs.build, alongside runs-on and before strategy/steps.

No imports, methods, or dependencies are required.

Suggested fixes powered by Copilot Autofix. Review carefully before merging.

Summary by CodeRabbit

• Chores
  • Updated continuous integration permissions to use read-only access for repository contents.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 3b95b03b-be57-4679-9c62-6865c104567d

📥 Commits

Reviewing files that changed from the base of the PR and between 0496eb5 and 487dd98.

📒 Files selected for processing (1)

• .github/workflows/ci.yml

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📝 Walkthrough

Walkthrough

The CI workflow’s build job now explicitly grants contents: read permissions. No build steps or job structure changed.

Changes

CI permissions

Layer / File(s)	Summary
Build job permission declaration .github/workflows/ci.yml	The build job adds a job-level permissions block granting contents: read access.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the workflow permissions fix and reflects the main change in the PR.
Description check	✅ Passed	The description explains the fix and impact, but it does not follow the template sections for Changelog or Related Issues.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch alert-autofix-3

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