ci: make deployment use the production environment (#7)

Author: potb

.github/workflows/deployment.yaml

@@ -17,9 +17,12 @@ concurrency:
 jobs:
   deployment:
     runs-on: ubuntu-22.04
-
     permissions: read-all
 
+    environment:
+      name: production
+      url: http://discord.gg/7Guzz9e
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3