Update push-gitlab.yml

Author: alexcoder04

.github/workflows/push-gitlab.yml

@@ -21,5 +21,5 @@ jobs:
       run: |
         git config user.name "${USERNAME}"
         git config user.email "${USERNAME}@protonmail.com"
-        git remote set-url gitlab "https://oauth2:${GITLAB_TOKEN}@gitlab.com/${USERNAME}/kherson.git"
+        git remote add gitlab "https://oauth2:${GITLAB_TOKEN}@gitlab.com/${USERNAME}/kherson.git"
         git push gitlab main