Revert "Update .gitlab-ci.yml"

This reverts commit 26c9574d66.

.gitlab-ci.yml

@@ -1,2 +1,10 @@
-# The Docker image that will be used to build your app
+build:
-image: openscad/openscad
+    image: openscad/openscad:latest
+    before_script:
+        - apt-get install -y jq make
+    script:
+        - Xvfb :99 &
+        - DISPLAY=:99 make -j$(nproc) DESTDIR=public models webpage
+    artifacts:
+        expose_as: public
+        paths: ["public"]