only delete files inside OpenMW.app dir

.gitlab-ci.yml

@@ -37,11 +37,11 @@ MacOS:
   stage: build
   allow_failure: true
   script:
-    - sudo rm -fr /usr/local/Openmw.app  # clean up after previous build
+    - rm -fr /usr/local/Openmw.app/*  # clean up after previous build
     - CI/before_install.osx.sh
     - CI/before_script.osx.sh
     - cd build; make -j2
-    - sudo make install
+    - make install
   artifacts:
     paths:
       - /usr/local/OpenMW.app