converter cli + tests

.gitlab-ci.yml

@@ -71,6 +71,9 @@ stages:
     - pwd
     - apt-get update -y
     - apt install -y python3-pip
+    - apt install -y python3.10
+    - python --version
+    - locate python
     - apt install -y git
     - apt install -y xvfb # Virtual framebuffer for GL stuff.
     - apt install -y inkscape pdftk