Update preproduction.yml

Signed-off-by: Helene MJ <[email protected]>

.github/workflows/preproduction.yml

@@ -1,19 +1,9 @@
 name: Deploy code.gouv.fr website to preproduction
 
 on:
-  # Runs on pushes targeting the default branch
   push:
     branches: ["main"]
 
-  # Allows you to run this workflow manually from the Actions tab
-  workflow_dispatch:
-
-# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
-# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
-concurrency:
-  group: "pages"
-  cancel-in-progress: false
-
 jobs:
   # Build job
   build:
@@ -44,7 +34,7 @@ jobs:
       - name: Deploy to Server
         uses: easingthemes/ssh-deploy@main
         env:
-          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
+          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }} # must be in PEM format
           ARGS: "-av --delete"
           SOURCE: _site/
           REMOTE_HOST: ${{ secrets.REMOTE_HOST }}