www/gitea: Update to 1.7.0 [1]

Add sqlite_unlock_notify tag [2]

PR: 235140 [1], 234709 [2]
Submitted by: stb@lassitu.de (maintainer) [1]
Reported by: adamw [2]
Approved by: maintainer [2]
MFH: 2019Q1
Security: 7f6146aa-2157-11e9-9ba0-4c72b94353b5
Sponsored by: Netzkommune Gmbh