15.4.1

@asmacdo

What's Changed

do not claim pip 25.1 is default by @asmacdo in #12502
Avoid breaking change on task signature by @stsewd in #12510
Fix SSO queries performance regression by @stsewd in #12509
Use context data instead of one off template tags by @agjohnson in #12506
Proxito: return Cross-Origin-Opener-Policy header by @humitos in #12513
Add GITHUB_APP_NAME to context processor by @ericholscher in #12511
Dependencies: all packages updated via pip-tools by @github-actions[bot] in #12520
Docs: mention support emails by @stsewd in #12518

Full Changelog: 15.4.0...15.4.1