Install Jekyll instead of using Debian version

.gitlab-ci.yml

@@ -8,9 +8,9 @@ test:
     script:
         - apt-get update
         - apt-get dist-upgrade -y
-        - apt-get install -y jekyll bundler
+        - apt-get install -y bundler
         - apt-get install -y locales # hi from #jekyll
-        - echo "en_US UTF-8" > /etc/locale.gen 
+        - echo "en_US UTF-8" > /etc/locale.gen
         - locale-gen en_US.UTF-8
         - export LANG=en_US.UTF-8
         - export LANGUAGE=en_US:en