Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -5,7 +5,7 @@ build the website:
   stage: build
   before_script:
   - gem install bundler -v2.0.2
-  - bundle install && bundle update
+  - bundle install && bundle update jekyll-theme-lcsb-default && bundle update jekyll-theme-lcsb-frozen-components
   script:
   - 'echo "baseurl: /$CI_PROJECT_NAME" >> _config_ci.yml'
   - 'echo "url: https://$CI_PROJECT_NAMESPACE.$CI_PAGES_DOMAIN" >> _config_ci.yml'