L2SS-451: Ignore submodules in newline checking

.gitlab-ci.yml

@@ -21,7 +21,7 @@ newline_at_eof:
   before_script:
     - pip3 install -r devices/test-requirements.txt
   script:
-    - flake8 --filename *.sh,*.conf,*.md,*.yml --select=W292 --exclude .tox,.egg-info,docker
+    - flake8 --filename *.sh,*.conf,*.md,*.yml --select=W292 --exclude docker-compose/tango-prometheus-exporter,.tox,.egg-info,docker
 python_linting:
   stage: linting
   script: