Update miniflux/miniflux Docker tag to v2.2.15

[renovate]

This PR contains the following updates:

Package	Update	Change
miniflux/miniflux (source)	patch	2.2.14 -> 2.2.15

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Release Notes

miniflux/v2 (miniflux/miniflux)

v2.2.15: Miniflux 2.2.15

Compare Source

✨ New Features

• New configuration option to disable the Miniflux API
• Added option to save entries to a specific Linkwarden collection
• YouTube subscription improvements:
  • Provide multiple feeds for YouTube content: Channel, videos only, short videos, live streams
  • Better canonical URL detection (now has its own dedicated step)
  • Improved YouTube channel parsing, including default playlists
• Allow feed entries with <i> and <small> tags
• URL Cleaner: Remove additional trackers from URLs

🐛 Bug Fixes

• YouTube embeds: Avoid Error 153 (video player configuration error) in various scenarios
• API: fetchContent endpoint now properly rewrites media URLs when using the media proxy
• Security: Only relative paths are now allowed for the redirectURL parameter
• CI fixes:
  • Improved CodeQL workflow (language matrix + dynamic analysis)
  • Fixed missing GitHub Actions permissions
  • Fixed RPM package versioning for scheduled and pull_request triggers

🧹 Refactoring & Maintenance

• JavaScript optimizations: use replace instead of remove/add, minor regex cleanup
• Performance improvement: removed string concatenation in loops
• Updated Polish translation
• Updated Postgres volume path in Docker Compose examples
• Added new CI workflow to mirror the Git repo to Codeberg

📦 Dependency Updates

This release includes updates to several dependencies:

• golang.org/x/* modules (net, oauth2, image, crypto)
• github.com/tdewolff/minify/v2
• github.com/coreos/go-oidc/v3
• github.com/go-webauthn/webauthn
• github.com/PuerkitoBio/goquery
• Docker base image updates (Alpine 3.23)
• GitHub Actions:
  • actions/checkout v6
  • actions/upload-artifact v5
  • golangci/golangci-lint-action v9

For more details, look at the Git commit history.

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