[ci] Fix another incorrect path in the .gitlab-ci.yml file

.gitlab-ci.yml

@@ -22,7 +22,7 @@ build:
   - export COVERAGE_FILE=.coverage.cmdline
   - export NOSE_WITH_COVERAGE=1
   - export NOSE_COVER_PACKAGE=beat.web
-  - ./bin/python ${PREFIX}/bin/coverage run --source=./src/beat.cmdline ${PREFIX}/bin/nosetests -sv beat.cmdline
+  - ./bin/python ${PREFIX}/bin/coverage run --source=./src/beat.cmdline ./bin/nosetests -sv beat.cmdline
   - unset COVERAGE_FILE
   - rm -rf $BEAT_TEST_PREFIX
   - unset BEAT_TEST_PREFIX