Set variable keep_releases to maximum 2 in deployment

.gitlab-ci/deployer/deploy.php

@@ -49,7 +49,6 @@ set('rsync', [
     'timeout' => 300
 ]);
 set('rsync_src', './');
-set('keep_releases', 10);
 inventory('./.gitlab-ci/deployer/servers.yml');
 set('php', '/opt/php/php72/bin/php');
 set('bin_folder', 'vendor/bin/');

.gitlab-ci/deployer/servers.yml

@@ -15,4 +15,4 @@ develop:
     writable_mode: chmod
     forward_agent: true
     deploy_path: ~/ci/
-    keep_releases: 5
+    keep_releases: 2