Adjusted staging deployment

.github/workflows/deploy-staging.yml

@@ -59,13 +59,14 @@ jobs:
           REACT_APP_MIDDLEWARE_URL: ${{ secrets.STAGING_MIDDLEWARE_URL }}
           REACT_APP_COMMIT_HASH: ${{ github.sha }}
 
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           repository: 'CAHLR/OATutor-Staging'
-          ssh-key: ${{ secrets.STAGING_SSH_PRIVATE_KEY }}
+          token: ${{ secrets.GH_PAT }}  # Use PAT for checking out the staging repo
           ref: 'main'
           path: 'staging-build'
 
+      # Modified to use HTTPS and PAT for pushing
       - name: Push
         run: |
           cd staging-build
@@ -77,4 +78,4 @@ jobs:
           git config --local user.name "${{ env.git_name }}"
           git diff --cached --quiet --exit-code && echo "no changes to platform, exiting early" && exit 0
           git commit -m "deploy commit: CAHLR/OATutor@$GITHUB_SHA"
-          git push
+          git push https://x-access-token:${{ secrets.GH_PAT }}@github.com/CAHLR/OATutor-Staging.git main