chore: fetch latest commit ref in workflow

Author: timmyjose

.github/workflows/expo-preview.yml

@@ -25,6 +25,8 @@ jobs:
         uses: actions/checkout@v4
         with:
           token: ${{ secrets.GH_PAT }}
+          fetch-depth: 0
+          ref: ${{ github.event.issue.pull_request.head.ref }} 
 
       - name: 🏗 Setup Node
         uses: actions/setup-node@v4