Update.

latex/build.yml

 build:
   image: dbogatov/docker-images:latex-latest-multi-arch
   stage: build
-  script:
+  before_script:
     - IFS='|' read -r -a args <<< "$BUILD_ARGS"
     - |
       if [ ${#args[@]} -eq 0 ]
       then
         args="${args:-' '}"
       fi
+  script:
     - |
       for arg in "${args[@]}"
       do