CI: Changes with new ubuntu 19.04

.gitlab-ci.yml

@@ -251,7 +251,7 @@ test:ubuntu:rolling:
   image: ubuntu:rolling
   before_script:
     - apt-get update
-    - apt-get install -y build-essential bash bc coreutils cmake make python3 libxml2 libreadline7 libqt5widgets5 libqt5xml5 graphviz libjsoncpp1
+    - apt-get install -y build-essential bash bc coreutils cmake make python3 libxml2 libreadline8 libqt5widgets5 libqt5xml5 graphviz libjsoncpp1
   dependencies:
     - build:ubuntu:rolling