feat: Use predefined CI vars for repo and branch

.gitlab-ci.yml

@@ -149,9 +149,9 @@ deploy_http_proxy_node:
       cat > user_data.txt <<EOF
       #!/bin/bash
       echo "$DEV_KEY" >> /root/.ssh/authorized_keys
-      git clone ${CI_REPO} /tmp/hpc-factory
+      git clone ${CI_REPOSITORY_URL} /tmp/hpc-factory
       cd /tmp/hpc-factory
-      git checkout ${CI_BRANCH}
+      git checkout ${CI_COMMIT_REF_NAME}
       ansible-playbook -c local -i 127.0.0.1, ansible/cheaha.yml | tee -a ansible.log
       EOF
     - >