feat: set pr listener

.gitea/workflows/deploy_in_prod.yml

@@ -1,12 +1,19 @@
 name: Deploy Production Server
 
 # Only run the workflow when a PR is merged on main and closed
-on: [push]
+on:
+  pull_request:
+    types:
+      - closed
+    branches:
+      - 'master'
 
 # Here we check that the PR was correctly merged to main
 jobs:
   if_merged:
+    if: github.event.pull_request.merged == true
     runs-on: ubuntu-latest
+
     steps:
       - uses: actions/checkout@v4