fix(ci): grant contributors workflow permission to open PRs

[mohanagy]

Summary

• The Update contributors workflow failed on its first run after #55 merged to main, with Resource not accessible by integration.
• Root cause: branch protection on main triggers the action's auto_detect_branch_protection fallback (open a PR instead of pushing directly), but the workflow only had contents: write — it lacked pull-requests: write.
• This PR adds pull-requests: write to the workflow permissions block.

Repo-level setting also flipped

The repo-level switch "Allow GitHub Actions to create and approve pull requests" was previously off (can_approve_pull_request_reviews: false). It has been enabled — without that, no per-workflow pull-requests: write can take effect.

Both conditions are now in place:

• Repo: can_approve_pull_request_reviews: true
• Workflow: pull-requests: write (this PR)

Test plan

• CI passes on this PR
• After merge to main: Update contributors workflow runs successfully and opens a docs(contributor): contributors readme action update PR with the populated HTML table for @mohanagy and @jamemackson
• That auto-generated PR is merged, populating the README contributors section in main
• After both are landed, tag v0.11.0 from main so the npm package ships with a real contributors table

Notes

• The orphaned side branch contributors-readme-action-e8pGzCw-Ox left by the failed first run has already been deleted.
• This is a follow-up to #55 — the actual v0.11.0 tag is held until this lands and the contributors table is populated.

Summary by CodeRabbit

• Chores
  • Updated GitHub Actions workflow permissions to support additional automation capabilities.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 8065299e-6f65-438c-a221-7dabd094223a

📥 Commits

Reviewing files that changed from the base of the PR and between eaf2c1a and 579a65a.

📒 Files selected for processing (1)

• .github/workflows/contributors.yml

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📝 Walkthrough

Walkthrough

The PR adds pull-requests: write permission to the GitHub Actions contributors workflow, granting it the ability to write to pull requests alongside its existing content write access.

Changes

Workflow Permissions Update

Layer / File(s)	Summary
Workflow Permissions .github/workflows/contributors.yml	Adds pull-requests: write permission to the permissions block, enabling pull request write access in the workflow.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• mohanagy/graphify-ts#55: Introduces the contributors workflow and initially sets contents: write permission; this PR extends those permissions with pull-requests: write.

Poem

🐰 A tiny hop, one line to add,
PR permissions? Never sad!
Now the workflow can comment with grace,
On pull requests across the place! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: granting the contributors workflow the pull-requests permission to enable PR creation.
Description check	✅ Passed	The description provides detailed context, root cause analysis, and a comprehensive test plan, though the Testing section lacks the standard checklist items from the template.
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 chore/fix-contributors-workflow-permissions

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