Migrate to Gerrit

Change-Id: I1fcf285552954a19c49c62a717eb136fe488f372
diff --git a/.gitreview b/.gitreview
old mode 100755
new mode 100644
index 745b451..1e59add
--- a/.gitreview
+++ b/.gitreview
@@ -1,4 +1,5 @@
 [gerrit]
-host=review.opendev.org
+host=review.vexxhost.dev
 port=29418
-project=openstack/staffeln.git
+project=staffeln.git
+defaultbranch=main