chore: update default branch reference in health checks workflow from 'datil' to 'master'

Author: Ansonhkg

.github/workflows/health-checks.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Checkout datil branch
         uses: actions/checkout@v4
         with:
-          ref: ${{ github.event.inputs.datil_branch || 'datil' }}
+          ref: ${{ github.event.inputs.datil_branch || 'master' }}
           fetch-depth: 1
 
       - name: Setup Node.js