Update docker-compose.yml.j2 to expose port 2525 (because beta.gouv uses...

Update docker-compose.yml.j2 to expose port 2525 (because beta.gouv uses scalingo which doesn't allow port 25 use)
4 jobs for master
Status Job ID Name Coverage
  Build Docker Image
manual #8397
allowed to fail manual
build_docker_image_
 
  Generate Config Files
manual #8398
allowed to fail manual
generate-config-files
 
  Deploy
manual #8399
allowed to fail manual
deploy
manual #8400
allowed to fail manual
rsync-files-on-server