ci(deps): auto-approve / auto-merge dependencies from dependabot

[mwbrooks]

Summary

Add a GitHub Actions workflow to auto-approve and auto-merge Dependabot pull requests for patch and minor version updates.

This reduces maintenance burden by automatically handling low-risk dependency updates while still requiring manual review for major version bumps.

Repository Settings Required

To enable auto-merge functionality, the following repository settings must be configured:

• Settings → General → Pull Requests

  • ✅ Allow auto-merge

• Settings → Branches → main branch protection rule

  • ✅ Require status checks to pass before merging
    • Add required checks: Build, Unit Tests

• Settings → Actions → General → Workflow permissions

  • ✅ Allow GitHub Actions to create and approve pull requests

Requirements (place an x in each [ ])

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.44%. Comparing base (2e97fda) to head (571bd00).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2780   +/-   ##
=======================================
  Coverage   93.44%   93.44%           
=======================================
  Files          37       37           
  Lines        7677     7677           
  Branches      669      669           
=======================================
  Hits         7174     7174           
  Misses        498      498           
  Partials        5        5           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[zimeg]

LGTM - clean dependabot auto-merge workflow

[mwbrooks]

Thank you @zimeg! I've confirmed that all 3 settings are configured.

One note:

• The required status checks are only the Node.js CI / build (18.x), (20.x), and (22.x).
• Does not include the Samples Integration testing, although we can add it if you all want