Update dependency go-gitea/gitea to v1.15.10

This MR contains the following updates:

Package	Type	Update	Change
go-gitea/gitea	ironbank-github	patch	v1.15.9 -> v1.15.10
go-gitea/gitea		patch	v1.15.9 -> v1.15.10

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Release Notes

go-gitea/gitea

v1.15.10

Compare Source

1.15.10 - 2022-01-14

• BUGFIXES
  • Fix inconsistent MR comment counts (#​18260) (#​18261)
  • Fix release link broken (#​18252) (#​18253)
  • Fix update user from site administration page bug (#​18250) (#​18251)
  • Set HeadCommit when creating tags (#​18116) (#​18173)
  • Use correct translation key for error messages due to max repo limits (#​18135 & #​18153) (#​18152)
  • Fix purple color in suggested label colors (#​18241) (#​18242)
• SECURITY
  • Bump mermaid from 8.10.1 to 8.13.8 (#​18198) (#​18206)

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