fixup! fixup! fixup! ci(.gitlab-ci): remove PDF generation

.gitlab-ci.yml

@@ -14,8 +14,9 @@ variables:
 
 prebuild:
   before_script:
-    - apt-get update && apt-get install -y python3-pip
+    - apt-get update && apt-get install -y pandoc python3-pip
     - python3 -m pip install poetry
+    - pandoc -v
     - poetry --version
   stage: prebuild
   script: |
@@ -37,8 +38,6 @@ build:
     echo "Generate Decks with Decker."
     /usr/local/bin/decker decks
     echo "Successfully built Decker slides."
-    ls -a
-    ls -a public/
   artifacts:
     paths:
       - $BUILD_OUTPUT