chore: updated rename migration action to run on PR merge

.github/workflows/update-be-new-migration-latest-timestamp.yml

@@ -2,27 +2,19 @@ name: Rename Migrations
 
 on:
   pull_request:
+    types:
+      - closed
     paths:
       - 'backend/src/db/migrations/**'
 
 jobs:
   rename:
     runs-on: ubuntu-latest
+    if: github.event.pull_request.merged == true
     steps:
       - name: Check out repository
         uses: actions/checkout@v2
 
-      - name: Install GH CLI - Local Testing Using Nektos Act
-        if: ${{ env.ACT }}
-        run: |
-          sudo apt update
-          sudo apt install gh
-  
-      - name: Checkout PR
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: gh pr checkout ${{ github.event.pull_request.number }}
-
       - name: Get list of newly added files in migration folder
         run: git diff --name-status HEAD^ HEAD backend/src/db/migrations | grep '^A' | cut -f2  | xargs -n1 basename > added_files.txt
       
@@ -35,5 +27,10 @@ jobs:
           git config user.email github-actions@github.com
           git add ./backend/src/db/migrations
           git commit -m "chore: renamed new migration files to latest timestamp (gh-action)"
-          git push
+      
+      - name: Push changes
+        env:
+          TOKEN: ${{ secrets.GH_PERSONAL_TOKEN }}
+        run: |
+          git push https://$GITHUB_ACTOR:$TOKEN@github.com/${{ github.repository }}.git HEAD:main