Try heredoc without any indentation

.gitlab-ci.yml

@@ -58,11 +58,11 @@ deploy:
   script:
     - rsync -r --delete-after --quiet ./ $SSH_USER@$DEPLOY_HOST::apilab/
     - ssh $SSH_USER@$DEPLOY_HOST <<EOF
-        . ~/.bashrc
-        . ~/.nvm/nvm.sh
-        nvm use stable
-        pm2 restart apilab
-      EOF
+. ~/.bashrc
+. ~/.nvm/nvm.sh
+nvm use stable
+pm2 restart apilab
+EOF
   environment:
     name: production
     url: https://apilab.gitlab.org