Add missing git installation step in release stage of GitLab CI configuration

.gitlab-ci.yml

@@ -76,6 +76,7 @@ sonarcloud_scan:
 perform_release:
   stage: release
   script: |
+    apk add --no-cache git
     cd ${GITLAB_CLONE_DIR}
     git config --global user.name "${GITLAB_USERNAME}"
     git config --global user.email "${GITLAB_USEREMAIL}"