blast_repo fixes (dart-archive/source_map_stack_trace#53)

dependabot

Author: devoncarew

pkgs/source_map_stack_trace/.github/dependabot.yml

@@ -8,3 +8,7 @@ updates:
       interval: monthly
     labels:
       - autosubmit
+    groups:
+      github-actions:
+        patterns:
+          - "*"