2. fix use ssh in ci script

.gitlab-ci.yml

@@ -5,7 +5,7 @@ stages:
 before_script:
         - echo "Prepare ssh environment"
         - eval $(ssh-agent -s)
-        - echo "$SSH_PRIVATE_KEY" | ssh-add
+        - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add
         - mkdir -p ~/.ssh
         - chmod 700 ~/.ssh
         - ssh-keyscan gitlab.com >> ~/.ssh/known_hosts