feat(dependabot): group github actions PRs

Signed-off-by: John Molakvoæ <skjnldsv@users.noreply.github.com>

.github/dependabot.yml

@@ -178,6 +178,10 @@ updates:
   schedule:
     interval: monthly
     timezone: Europe/Paris
+  groups:
+    github-actions:
+      patterns:
+        - "*"
   labels:
     - "3. to review"
     - "feature: dependencies"