Update gitea/gitea Docker tag to v1.21.5

[renovate]

This PR contains the following updates:

Package	Update	Change
gitea/gitea	patch	1.21.4 -> 1.21.5

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Release Notes

go-gitea/gitea (gitea/gitea)

v1.21.5

Compare Source

• SECURITY
  • Prevent anonymous container access if RequireSignInView is enabled (#​28877) (#​28882)
  • Update go dependencies and fix go-git (#​28893) (#​28934)
• BUGFIXES
  • Revert "Speed up loading the dashboard on mysql/mariadb (#​28546)" (#​29006) (#​29007)
  • Fix an actions schedule bug (#​28942) (#​28999)
  • Fix update enable_prune even if mirror_interval is not provided (#​28905) (#​28929)
  • Fix uploaded artifacts should be overwritten (#​28726) backport v1.21 (#​28832)
  • Preserve BOM in web editor (#​28935) (#​28959)
  • Strip / from relative links (#​28932) (#​28952)
  • Don't remove all mirror repository's releases when mirroring (#​28817) (#​28939)
  • Implement MigrateRepository for the actions notifier (#​28920) (#​28923)
  • Respect branch info for relative links (#​28909) (#​28922)
  • Don't reload timeline page when (un)resolving or replying conversation (#​28654) (#​28917)
  • Only migrate the first 255 chars of a Github issue title (#​28902) (#​28912)
  • Fix sort bug on repository issues list (#​28897) (#​28901)
  • Fix DeleteCollaboration transaction behaviour (#​28886) (#​28889)
  • Fix schedule not trigger bug because matching full ref name with short ref name (#​28874) (#​28888)
  • Fix migrate storage bug (#​28830) (#​28867)
  • Fix archive creating LFS hooks and breaking pull requests (#​28848) (#​28851)
  • Fix reverting a merge commit failing (#​28794) (#​28825)
  • Upgrade xorm to v1.3.7 to fix a resource leak problem caused by Iterate (#​28891) (#​28895)
  • Fix incorrect PostgreSQL connection string for Unix sockets (#​28865) (#​28870)
• ENHANCEMENTS
  • Make loading animation less aggressive (#​28955) (#​28956)
  • Avoid duplicate JS error messages on UI (#​28873) (#​28881)
  • Bump @github/relative-time-element to 4.3.1 (#​28819) (#​28826)
• MISC
  • Warn that DISABLE_QUERY_AUTH_TOKEN is false only if it's explicitly defined (#​28783) (#​28868)
  • Remove duplicated checkinit on git module (#​28824) (#​28831)

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