blast_repo fixes (dart-lang/browser_launcher#59)

dependabot
diff --git a/pkgs/browser_launcher/.github/dependabot.yml b/pkgs/browser_launcher/.github/dependabot.yml
index 8184a38..5a11cf5 100644
--- a/pkgs/browser_launcher/.github/dependabot.yml
+++ b/pkgs/browser_launcher/.github/dependabot.yml
@@ -9,3 +9,7 @@
     interval: monthly
   labels:
     - autosubmit
+  groups:
+    github-actions:
+      patterns:
+        - "*"