[INFRA] Set up default rulesets for default and release branches

[asf-gitbox-commits]

This Pull Request enables the repository to conform with the "sane default security settings" of the Apache Software Foundation by configuring a default branch ruleset that protects the default branch and any release branches.

Note that ~DEFAULT_BRANCH is a GitHub symbolic link to the current default branch (HEAD) of the repository and does not need changing.
If the managing project does not wish to set up these defaults, please close this Pull Request. Alternatively, the project may merge this Pull Request to apply the changes immediately.

If no action is taken, this Pull Request will be automatically merged by the Apache Infrastructure team on 2026-06-14 (30 days from now).

For any further information, please reach us on Slack or at: users@infra.apache.org

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 50.05%. Comparing base (4740dbc) to head (65370d5).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #96   +/-   ##
=======================================
  Coverage   50.05%   50.05%           
=======================================
  Files           4        4           
  Lines         975      975           
=======================================
  Hits          488      488           
  Misses        473      473           
  Partials       14       14           

☔ 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.