Merge branch 'Jakub/CI' into 'release'

Update .gitlab-ci.yml

See merge request elixxir/notifications-bot!8

.gitlab-ci.yml

@@ -17,7 +17,7 @@ before_script:
   - chmod 700 ~/.ssh
   - ssh-keyscan -t rsa $GITLAB_SERVER > ~/.ssh/known_hosts
   - git config --global url."git@$GITLAB_SERVER:".insteadOf "https://gitlab.com/"
-  - git config --global url."git@$GITLAB_SERVER:".insteadOf "https://git.xx.network/"
+  - git config --global url."git@$GITLAB_SERVER:".insteadOf "https://git.xx.network/" --add
   - export PATH=$HOME/go/bin:$PATH
 
 stages: