Group Dependabot action updates

Signed-off-by: Tim Paine <3105306+timkpaine@users.noreply.github.com>

Author: timkpaine

.github/dependabot.yml

@@ -13,4 +13,9 @@ updates:
       - "/upload-dist"
     schedule:
       interval: "monthly"
-    labels: []
+    groups:
+      github-actions:
+        patterns:
+          - "*"
+    labels:
+      - "part: github_actions"