chore: minor YAML lint fixes

Author: ashishb

.github/dependabot.yml

@@ -1,11 +1,12 @@
+---
 # To get started with Dependabot version updates, you'll need to specify which
 # package ecosystems to update and where the package manifests are located.
 # Please see the documentation for all configuration options:
 # https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
 
 version: 2
 updates:
-  - package-ecosystem: "github-actions" # See documentation for possible values
-    directory: "/" # Location of package manifests
+  - package-ecosystem: "github-actions"  # See documentation for possible values
+    directory: "/"  # Location of package manifests
     schedule:
       interval: "weekly"