Fix health check workflow with proper environment variables and exit codes

Author: Ansonhkg

.github/workflows/health-checks.yml

@@ -30,8 +30,7 @@ jobs:
       - name: Checkout datil branch
         uses: actions/checkout@v4
         with:
-          # ref: ${{ github.event.inputs.datil_branch || 'datil' }}
-          ref: feature/inf-607-feature-setup-worker-and-schedule-it-to-run-every-30-minutes
+          ref: ${{ github.event.inputs.datil_branch || 'datil' }}
           fetch-depth: 1
 
       - name: Setup Node.js