fix: update commit author retrieval in Vercel deploy workflow for accuracy

Author: myselfshravan

.github/workflows/vercel-deploy.yml

@@ -51,11 +51,8 @@ jobs:
           fi
 
       - name: Get commit author
+        id: commit_author
         run: |
-          AUTHOR=$(git log -1 --pretty=format:'%an <%ae>')
-          echo "author=$AUTHOR" >> "$GITHUB_OUTPUT"
-      
-      - name: Debug Author Output
-        run: |
-          echo "Captured Author: ${{ steps.commit_author.outputs.author }}"
-        
+          AUTHOR="${{ github.event.head_commit.author.name }} <${{ github.event.head_commit.author.email }}"
+          echo "Commit author from payload: $AUTHOR"
+          echo "author=$AUTHOR" >> "$GITHUB_OUTPUT"