ci: enable dependency manager for GitHub Actions

Dependabot will keep your GitHub actions up to date by creating pull requests.

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644 (file)
index 0000000..946aa41
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,7 @@
+version: 2
+
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: monthly