chore: add comment for startPR func

[noorsk-dev]

📝 Description of the Change

🔗 Linked GitHub Issue

Fixes #

👨🏻‍ Linked Jira

🚀 Type of Change

• 🐛 Bug fix (fix:)
• ✨ New feature (feat:)
• 💥 Breaking change (feat!:, fix!:)
• 📚 Documentation update (docs:)
• ⚙️ Chore (chore:)
• 💅 Refactor (refactor:)
• 🔧 Enhancement (enhance:)
• 📦 Dependency update (deps:)

🧪 Testing Strategy

• Unit tests
• Integration tests
• End-to-end tests
• Manual testing
• Not Applicable

✅ Submitter Checklist

• 📝 My commit messages are clear, informative, and follow the project's How to write a git commit message guide. The Gitlint linter ensures in CI it's properly validated
• ✨ I have ensured my commit message prefix (e.g., fix:, feat:) matches the "Type of Change" I selected above.
• ♽ I have run make test and make lint locally to check for and fix any
  issues. For an efficient workflow, I have considered installing
  pre-commit and running pre-commit install to
  automate these checks.
• 📖 I have added or updated documentation for any user-facing changes.
• 🧪 I have added sufficient unit tests for my code changes.
• 🎁 I have added end-to-end tests where feasible. See README for more details.
• 🔎 I have addressed any CI test flakiness or provided a clear reason to bypass it.
• If adding a provider feature, I have filled in the following and updated the provider documentation:
  • GitHub App
  • GitHub Webhook
  • Gitea/Forgejo
  • GitLab
  • Bitbucket Cloud
  • Bitbucket Data Center

[gemini-code-assist]

Summary of Changes

Hello @noorsk-dev, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on improving code readability and maintainability by adding a detailed comment to the startPR function. The new comment provides a thorough explanation of the function's complex operations, making it easier for developers to understand its role and behavior within the system.

Highlights

• Code Documentation: A comprehensive multi-line comment has been added to the startPR function in pkg/pipelineascode/pipelineascode.go. This comment details the function's responsibilities, including creating and initializing Tekton PipelineRuns, handling git authentication, adding labels/annotations, managing concurrency, reporting status, and handling partial failures.

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[gemini-code-assist]

Code Review

This pull request adds a comprehensive comment to the startPR function. The new comment accurately and clearly describes the function's purpose and its various side effects, which significantly improves code readability and maintainability. The change is a valuable documentation enhancement with no issues found.