Update slack notification workflow with template

.github/workflows/proof-runner-notification.yml

@@ -1,20 +1,17 @@
-name: Handle Proof Runner Deployment Status
+name: Proof Runner Deployment Status
 on:
   status
 jobs:
   handle-proof-runner:
     runs-on: ubuntu-latest
     steps:
-    - name: Check Deployment Status
+    - name: Generate Slack Payload
       run: |
-        echo "Deployment Status: ${{ github.event.deployment_status.state }}"
-        if [[ "${{ github.event.deployment_status.state }}" == "success" ]]; then
-          echo "Proof Runner deployment was successful!"
-          # Add your steps to handle a successful deployment
-        elif [[ "${{ github.event.deployment_status.state }}" == "failure" ]]; then
-          echo "Proof Runner deployment failed!"
-          # Add your steps to handle a failed deployment
-        else
-          echo "Proof Runner deployment is in progress!"
-          # Add your steps to handle in-progress deployment
-        fi
+        echo '{"Check Status": "${{ github.event.state }}"}' > payload.json
+
+    - name: Send Status Check to Slack
+      uses: slackapi/slack-github-action@v1.26.0
+      with:
+        payload-file-path: "./payload.json"
+      env:
+        SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}