Move yet another line out of before_script

.gitlab-ci.yml

@@ -5,7 +5,6 @@ cache:
 
 before_script:
   - echo Current working directory is $(pwd)
-  - sudo apt-get install --no-install-recommends -y upx zip unzip
 
 build linux x86_64:
   image: rabits/qt:5.9-desktop
@@ -16,6 +15,7 @@ build linux x86_64:
   script:
     - qmake --version
     - gcc --version
+    - sudo apt-get install --no-install-recommends -y upx zip unzip
 
     - cd scripts
     - ./configure_ubuntu.sh