Log Message:
gitea: Update to 1.9.1

Changes:

* BREAKING
  * Add pagination for admin api get orgs and fix only list public orgs bug \ 
(#7742) (#7752)
* SECURITY
  * Be more strict with git arguments (#7715) (#7762)
  * Release built with go 1.12.8 to fix security fixes in golang std lib, ref: \ 
https://groups.google.com/forum/#!topic/golang-nuts/fCQWxqxP8aA
* BUGFIXES
  * Fix local runs of ssh-requiring integration tests (#7855) (#7857)
  * Fix hook problem (#7856) (#7754)
  * Use .ExpiredUnix.IsZero to display green color of forever valid gpg key \ 
(#7850) (#7846)
  * Do not fetch all refs (#7797) (#7837)
  * Fix duplicate call of webhook (#7824) (#7821)
  * Enable switching to a different source branch when PR already exists (#7823)
  * Rewrite existing repo units if setting is not included in api body (#7811)
  * Prevent Commit Status and Message From Overflowing On Branch Page (#7800) (#7808)
  * API: fix multiple bugs with statuses endpoints (Backport #7785) (#7807)
  * Fix Slack webhook fork message (1.9 release backport) (#7783)
  * Fix approvals counting (#7757) (#7777)
  * Fix rename failed when rewrite public keys (#7761) (#7769)
  * Fix dropTableColumns sqlite implementation (#7710) (#7765)
  * Fix repo_index_status lingering when deleting a repository (#7738)
  * Fix milestone completness calculation when migrating (#7725) (#7732)
  * Fixes indexed repos keeping outdated indexes when files grow too large (#7731)
  * Skip non-regular files (e.g. submodules) on repo indexing (#7717)
  * Improve branches list performance and fix protected branch icon when \ 
no-login (#7695) (#7704)
  * Correct wrong datetime format for git (#7689) (#7690)