chore: only needed dependabot security alerts enabled, not all deps

.github/dependabot.yml

@@ -1,12 +0,0 @@
-# docs: https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
-
-version: 2
-updates:
-  - package-ecosystem: "npm" # See documentation for possible values
-    directory: "/" # Location of package manifests
-    schedule:
-      interval: "weekly"
-      day: "sunday"
-    commit-message:
-      prefix: "chore(deps):"
-