gitlab sr: update git-backup revision

software/gitlab/software.cfg

@@ -41,6 +41,8 @@ parts =
     gitlab/vendor/bundle
     github-markup-patch
     gitlab-workhorse
+    git-go123
+    git-errors
     git-backup
 
 #   for instance
@@ -191,10 +193,18 @@ go.importpath = github.com/libgit2/git2go
 # branch 'next' is required by git-backup
 revision = next-g53594d7581617dbae7bb5960b4ac5f0ff513c184
 
+[git-go123]
+<= go-git-repository
+go.importpath = lab.nexedi.com/kirr/go123
+
+[git-errors]
+<= go-git-repository
+go.importpath = github.com/pkg/errors
+
 [git-backup-repository]
 <= go-git-repository
 go.importpath = lab.nexedi.com/kirr/git-backup
-revision = 3ba6cf73ba224c40f67f1fb87c855b915eb91f58
+revision = 0b8d834bd00b19169f65d407eab8980076779b9d
 
 
 [git-backup]