Add labels to dependabot prs that upgrade github actions (#2266)

Signed-off-by: Craig Perkins <[email protected]>

Author: cwperks

.github/dependabot.yml

@@ -11,4 +11,7 @@ updates:
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "weekly"
+    labels:
+      - "dependabot"
+      - "dependencies"