v1.8.1

* BUGFIXES
  * Fix 404 when sending pull requests in some situations (#6871) (#6873)
  * Enforce osusergo build tag for releases (#6862) (#6869)
  * Don't post process commit summary in templates (#6842) (#6868)
  * Fix 500 when reviewer is deleted (#6856) (#6860)
  * Fix v78 migration for MSSQL (#6823) (#6854)
  * Added tags pull step to drone config to show correct version hashes (#6836) (#6839)
  * Fix double-generation of scratch token (#6833) (#6835)
  * When mirroring we should set the remote to mirror (#6824) (#6834)
  * Show scrollbar only when needed (#6802) (#6803)
  * Service worker js is missing a comma (#6788) (#6795)
  * Set user search base field optional in LDAP (simple auth) edit page (#6779) (#6789)
  * Fix team edit API panic (#6780) (#6785)
  * Minor CSS cleanup for the navbar (#6553) (#6781)
  * Stricter domain name pattern in email regex (#6739) (#6768)
  * Detect and restore encoding and BOM in content (#6727) (#6765)
  * Fix org visibility bug when git cloning (#6743) (#6762)
  * OAuth2 token can be used in basic auth (#6747) (#6761)
  * Fix missing return (#6751) (#6756)
  * Fix sorting repos on org home page with non-admin login (#6741) (#6746)
  * Drop is_bare IDX only when it exists for MySQL and MariaDB (#6736) (#6744)
  * Fix team members API (#6714) (#6729)
  * Load issue attributes when editing an issue with API (#6723) (#6725)
  * Fix config ui error about cache ttl (#6861) (#6865)
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