repomanager: changes awaiting approval

[the-repository-manager]

repomanager has detected configuration drift on this repository.

Tick the boxes below to apply each change. Untick to ignore for now.

Kind	Changes
ruleset	1
repo	1
files	1

Proposed changes

• Create ruleset repomanager-default-branch
• Update repository settings (has_projects, has_wiki, allow_squash_merge, allow_merge_commit, allow_rebase_merge, delete_branch_on_merge)
• Open PR to update templated files (SECURITY.md, LICENSE, .github/workflows/security.yml, CODE_OF_CONDUCT.md)

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Close this issue to dismiss the plan. It will be reopened on the next drift detection.