add auto bump for e2e test

Signed-off-by: xudong liu <[email protected]>

.github/workflows/bump-k8s-for-e2e-test.yml

@@ -28,17 +28,20 @@ jobs:
       - name: Configure Git
         run: |
           git config user.name "github-actions[bot]"
-          git config user.email "github-actions-bot@example.com"
+          git config user.email "[email protected].com"
 
       - name: Check for changes and update version
         id: changes
         run: |
-          echo "changes=$(git diff)" >> $GITHUB_OUTPUT
+          git_diff_output=$(git diff)
+          if [ -n "$git_diff_output" ]; then
+            echo "changes=true" >> $GITHUB_OUTPUT
+          fi
 
       - name: Create PR
         if: steps.changes.outputs.changes
         run: |
-          HEAD_BRANCH="github-actions/auto-bump/k8s-dependencies-$(date +'%Y%m%d%H%M%S')"
+          HEAD_BRANCH="github-actions/auto-bump/test-e2e-k8s-dependencies-$(date +'%Y%m%d%H%M%S')"
           git checkout -b "$HEAD_BRANCH"
           git add go.mod go.sum
           git commit -sm "Bump kubernetes group dependencies updates for e2e test"