ci: run compare script once PR is ready (#2922)

Author: merll

.github/workflows/svcaplbot-run-dyff.yml

@@ -3,7 +3,7 @@ name: chart-deps compare output to main
 on:
   workflow_dispatch: ~
   pull_request:
-    types: [opened, synchronize, reopened]
+    types: [opened, synchronize, reopened, ready_for_review]
     paths:
       - "charts/**"
       - "values/**"
@@ -31,14 +31,22 @@ jobs:
         run: |
           COMMIT_MSG=$(git log -1 --pretty=%B)
           IS_DRAFT="${{ github.event.pull_request.draft }}"
+          EVENT_ACTION="${{ github.event.action }}"
 
           echo "Commit message: $COMMIT_MSG"
           echo "Is draft: $IS_DRAFT"
+          echo "Event action: $EVENT_ACTION"
 
-          if [[ $COMMIT_MSG == "Merge branch"* || $IS_DRAFT == "true" ]]; then
-            echo "skip=true" >> $GITHUB_OUTPUT
+          if [[ $IS_DRAFT == "true" ]]; then
+            echo "Skipping - PR is in draft"
+            echo "skip=true" >> "$GITHUB_OUTPUT"
+          elif [[ $COMMIT_MSG == "Merge branch"* && $EVENT_ACTION != "ready_for_review" ]]; then
+            # Skip if merge commit, unless it is triggered by the ready_for_review event
+            echo "Skipping - merge commit"
+            echo "skip=true" >> "$GITHUB_OUTPUT"
           else
-            echo "skip=false" >> $GITHUB_OUTPUT
+            echo "Running workflow"
+            echo "skip=false" >> "$GITHUB_OUTPUT"
           fi
       - name: Show output
         run: |