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

.gitlab-ci.yml

@@ -17,7 +17,7 @@ build:
   - ./bin/buildout
   - export COVERAGE_FILE=.coverage.django
   - export BEAT_TEST_PREFIX=`mktemp -d --tmpdir=/var/tmp beat_test_prefix.XXXXXXXXX`
-  - ./bin/python ${PREFIX}/bin/coverage run --source=${CI_PROJECT_NAME} ${PREFIX}/bin/django test --settings=beat.web.settings.test -v 2
+  - ./bin/python ${PREFIX}/bin/coverage run --source=${CI_PROJECT_NAME} ./bin/django test --settings=beat.web.settings.test -v 2
   - export BEAT_CMDLINE_TEST_PLATFORM=django://beat.web.settings.test
   - export COVERAGE_FILE=.coverage.cmdline
   - export NOSE_WITH_COVERAGE=1