Repo update failures should not fail the whole build

update

@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
-set -euo pipefail
 
 for repo in repos/*; do
     $repo/update && (git diff --exit-code $repo > /dev/null || git commit -m "Updated $repo" -- $repo)
 done
+
+exit 0