ci: add dependabot for gha version bumping
ADD
.github/dependabot.yml
+# dependabot.yml reference: https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+#
+# Notes:
+# - Status and logs from dependabot are provided at
+# https://github.com/jupyterhub/repo2docker/network/updates.
+# - YAML anchors are not supported here or in GitHub Workflows.
+#
+version: 2
+updates:
+ # Maintain dependencies in our GitHub Workflows
+ - package-ecosystem: github-actions
+ directory: "/" # This should be / rather than .github/workflows
+ schedule:
+ interval: weekly
+ time: "05:00"
+ timezone: "Etc/UTC"

ci: add dependabot for gha version bumping