enable dependabot (#192)

keewis · web-flow · commit ce821cb0b886 · 2022-12-21T21:59:52.000+01:00
In order to keep the ci updated, this enables `dependabot` for github
actions.

- [x] Passes `pre-commit run --all-files`
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
