Update dependabot.yml

Signed-off-by: Ryan Luu <[email protected]>

.github/dependabot.yml

@@ -5,11 +5,11 @@
 
 version: 2
 updates:
-  - package-ecosystem: "gitsubmodule" # See documentation for possible values
-    directory: "/" # Location of package manifests
+  - package-ecosystem: "devcontainers"
+    directory: "/.devcontainer"
     schedule:
-      interval: "daily"
-  - package-ecosystem: "github-actions" # See documentation for possible values
-    directory: "/" # Location of package manifests
+      interval: weekly
+  - package-ecosystem: "github-actions"
+    directory: "/.github/workflows"
     schedule:
-      interval: "daily"
+      interval: "weekly"