v1.21.6

* SECURITY
  * Fix XSS vulnerabilities (#29336)
  * Use general token signing secret (#29205) (#29325)
* API
  * Refactor issue template parsing and fix API endpoint (#29069) (#29140)
  * Fix swift packages not resolving (#29095) (#29102)
* ENHANCEMENTS
  * Refactor git version functions and check compatibility (#29155) (#29157)
  * Improve user experience for outdated comments (#29050) (#29086)
  * Hide code links on release page if user cannot read code (#29064) (#29066)
  * Wrap contained tags and branches again (#29021) (#29026)
  * Fix incorrect button CSS usages (#29015) (#29023)
  * Strip trailing newline in markdown code copy (#29019) (#29022)
* BUGFIXES
  * Remove SSH workaround (#27893) (#29332)
  * Only log error when tag sync fails (#29295) (#29327)
  * Fix SSPI user creation (#28948) (#29323)
  * Improve the `issue_comment` workflow trigger event (#29277) (#29322)
  * Discard unread data of `git cat-file` (#29297) (#29310)
  * Fix error display when merging PRs (#29288) (#29309)
  * Prevent double use of `git cat-file` session. (#29298) (#29301)
  * Fix missing link on outgoing new release notifications (#29079) (#29300)
  * Fix debian InRelease Acquire-By-Hash newline (#29204) (#29299)
  * Always write proc-receive hook for all git versions (#29287) (#29291)
  * Do not show delete button when time tracker is disabled (#29257) (#29279)
  * Workaround to clean up old reviews on creating a new one (#28554) (#29264)
  * Fix bug when the linked account was disactived and list the linked accounts (#29263)
  * Do not use lower tag names to find releases/tags (#29261) (#29262)
  * Fix missed edit issues event for actions (#29237) (#29251)
  * Only delete scheduled workflows when needed (#29091) (#29235)
  * Make submit event code work with both jQuery event and native event (#29223) (#29234)
  * Fix push to create with capitalize repo name (#29090) (#29206)
  * Use ghost user if user was not found (#29161) (#29169)
  * Dont load Review if Comment is CommentTypeReviewRequest (#28551) (#29160)
  * Refactor parseSignatureFromCommitLine (#29054) (#29108)
  * Avoid showing unnecessary JS errors when there are elements with different origin on the page (#29081) (#29089)
  * Fix gitea-origin-url with default ports (#29085) (#29088)
  * Fix orgmode link resolving (#29024) (#29076)
  * Fix: Elasticsearch: Request Entity Too Large #28117 (#29062) (#29075)
  * Do not render empty comments (#29039) (#29049)
  * Avoid sending update/delete release notice when it is draft (#29008) (#29025)
* DOCS
  * Rm outdated docs from some languages (#27530) (#29208)
* MISC
  * Implement some action notifier functions (#29173) (#29308)
  * Fix gitea-action user avatar broken on edited menu (#29190) (#29307)
  * Disallow merge when required checked are missing (#29143) (#29268)
  * Convert visibility to number (#29226) (#29244)
  * Load outdated comments when (un)resolving conversation on PR timeline (#29203) (#29221)
  * Fix incorrect link to swift doc and swift package-registry login command (#29096) (#29103)
  * Fix typos in the documentation (#29048) (#29056)
  * Explained where create issue/PR template (#29035)
-----BEGIN PGP SIGNATURE-----

iHUEABYIAB0WIQSHIrYdcjQQglU7IBy4vm1hDmHIYgUCZdfOQwAKCRC4vm1hDmHI
Yt18AQD6NQP3iMNhFpDPD0x0uaVL9sinDfEBEWtcwcykZ8xfcwD+P4KBnstb9fcE
Y8IvkdhiYbRVscZegpML1Lfve+hKlwU=
=20vp
-----END PGP SIGNATURE-----