Remove quoation marks from ssh-agent command

.gitlab-ci.yml

@@ -71,7 +71,7 @@ deploy_to_phoenix:
   needs: ["build"]
 
   before_script:
-    - eval "$(ssh-agent -s)"
+    - eval $(ssh-agent -s)
     - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add -
     - mkdir -p ~/.ssh
     - chmod 700 ~/.ssh