Merge branch 'patch-1' into 'master'

Update .gitlab-ci.yml

See merge request jonasblatt/ma-jonasblatt-dmn-verifier!104

.gitlab-ci.yml

@@ -21,7 +21,7 @@ cache:
 
 # Remove trash after builds
 default:
-  after_script:
+  before_script:
     - sudo rm -rf *
 
 .validate: &validate