blast_repo fixes (dart-archive/bazel_worker#91)

dependabot

Author: devoncarew

pkgs/bazel_worker/.github/dependabot.yml

@@ -9,3 +9,7 @@ updates:
       interval: monthly
     labels:
       - autosubmit
+    groups:
+      github-actions:
+        patterns:
+          - "*"