blast_repo fixes (dart-lang/yaml#146)

dependabot

pkgs/yaml/.github/dependabot.yml

diff --git a/pkgs/yaml/.github/dependabot.yml b/pkgs/yaml/.github/dependabot.yml
index 1603cdd..725f03a 100644
--- a/pkgs/yaml/.github/dependabot.yml
+++ b/pkgs/yaml/.github/dependabot.yml
@@ -3,7 +3,9 @@
 version: 2
 
 updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
+  - package-ecosystem: github-actions
+    directory: /
     schedule:
-      interval: "monthly"
+      interval: monthly
+    labels:
+      - autosubmit