software/gitlab: version up gilab-ce

with backported fix for rst rendering with large documents

software/gitlab/software.cfg

@@ -160,7 +160,7 @@ git-executable = ${git:location}/bin/git
 [gitlab-repository]
 <= git-repository
 repository = https://lab.nexedi.com/nexedi/gitlab-ce.git
-revision = v12.10.14-11-gdf89aa7e6bf
+revision = v12.10.14-12-g7ce27b49193
 location = ${buildout:parts-directory}/gitlab
 
 [gitlab-shell-repository]