Update dependabot.yml

.github/dependabot.yml

@@ -1,4 +1,3 @@
-# Keep GitHub Actions up to date with GitHub's Dependabot... dependabot.yml
 # https://docs.github.com/en/code-security/dependabot/working-with-dependabot/keeping-your-actions-up-to-date-with-dependabot
 # https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#package-ecosystem
 version: 2