CI: Change deployment to webhook call

Author: gmta

.github/workflows/deploy.yml

@@ -11,9 +11,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: akhileshns/heroku-deploy@v4
+      - name: Invoke deployment hook
+        uses: distributhor/workflow-webhook@v3
         with:
-          heroku_api_key: ${{secrets.HEROKU_API_KEY}}
-          heroku_app_name: ${{secrets.HEROKU_APP_NAME}}
-          heroku_email: ${{secrets.HEROKU_EMAIL}}
-          branch: "master"
+          webhook_url: ${{ secrets.DEPLOY_WEBHOOK_URL }}
+          webhook_secret: ${{ secrets.DEPLOY_WEBHOOK_SECRET }}