www/gitea: Update to 1.19.4 (fixes security vulnerabilities)

ChangeLog: https://github.com/go-gitea/gitea/releases/tag/v1.19.4

SECURITY

• Fix open redirect check for more cases

API

• Return 404 in the API if the requested webhooks were not found
• Fix organization field being null in GET /api/v1/teams/{id}

ENHANCEMENTS

• Set --font-weight-bold to 600
• Make mailer SMTP check have timed context
• Do not select line numbers when selecting text from the action run logs

BUGFIXES

• Fix bug when change user name
• Fix task list checkbox toggle to work with YAML front matter
• Hide limited users if viewed by anonymous ghost
• Add WithPullRequest for actionsNotifier
• Fix parallelly generating index failure with Mysql
• GitLab migration: Sanitize response for reaction list
• Fix users cannot visit issue attachment bug
• Fix missing reference prefix of commits when sync mirror repository
• Only validate changed columns when update user
• Make DeleteIssue use correct context
• Fix topics deleted via API not being deleted in org page
• Fix Actions being enabled accidentally
• Fix missed table name on iterate lfs meta objects
• Fix safari cookie session bug
• Respect original content when creating secrets
• Fix Pull Mirror out-of-sync bugs
• Fix run list broken when trigger user deleted
• Fix issues list page multiple selection update milestones
• Fix: release page for empty or non-existing target
• Fix close org projects
• Refresh the refernce of the closed PR when reopening
• Fix the permission of team's Actions unit issue
• Bump go.etcd.io/bbolt and blevesearch deps
• Fix new wiki page mirror
• Match unqualified references when syncing pulls as well

DOCS

• Change branch name from master to main in some documents' links
• Remove unnecessary content on docs
• Unify doc links to use paths relative to doc folder
• Fix docs documenting invalid @every for OLDER_THAN cron settings

MISC

• Merge different languages for language stats
• Hiding Secrets options when Actions feature is disabled
• Improve decryption failure message
• Makefile: Use portable !, not GNUish -not, with find(1).

PR: 272380
Reported by: stb@lassitu.de
MFH: 2023Q3 (security fix)