Group CI dependencies in dependabot

Author: ChrisLovering

.github/dependabot.yml

@@ -10,9 +10,14 @@ updates:
         update-types:
           - version-update:semver-patch
           - version-update:semver-minor
+
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
       interval: "daily"
     reviewers:
       - "python-discord/devops"
+    groups:
+      ci-dependencies:
+        patterns:
+          - "*"