Delete artifacts.zip after unzip and unzipped directory 'build' after rpm...

Delete artifacts.zip after unzip and unzipped directory 'build' after rpm install (limiting disk space consumption).

.gitlab-ci.yml

@@ -177,11 +177,13 @@ doctest_nightly_matfaust:
     # what's in this?
     - zip -Tv artifacts.zip
     - unzip artifacts.zip
+    - rm artifacts.zip
     # what's in this pkg?
     - rpm -ql -p build/faust*rpm
     # install the pkg but first remove poential older one
     - if [ $(rpm -qa faust | wc -l) -gt 0 ]; then sudo rpm -e faust;fi
     - sudo rpm -i --nodeps build/faust*rpm
+    - rm -Rf build
     # all is set to doctest matfaust
     # no -nojvm because it's needed for Faust.imagesc doctest
     - 'if matlab -nodisplay -r "addpath /usr/share/octave/packages/doctest-0.7.0/; setup_FAUST; doctest matfaust.Faust; exit;" | tee /tmp/matlab_doctest_matfaust.Faust | grep FAIL; then exit 1; else exit 0; fi'