chore: Add dependabot groups (#34)

Author: AndyRae

.github/dependabot.yml

@@ -4,6 +4,16 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+      day: "monday"
     commit-message:
       prefix: "fix(dependencies): "
+    groups:
+      github-actions:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
+          - "major"
+