flake8 detects errors

[JC-wk]

Describe the bug
pre-commit run flake8 --all-files detects errors which should be resolved or ignored.

api_app/api/routes/api.py:66:5: F824 `global openapi_definitions` is unused: name is never assigned in scope
api_app/api/routes/api.py:125:5: F824 `global openapi_definitions` is unused: name is never assigned in scope
e2e_tests/resources/workspace.py:32:73: E231 missing whitespace after ','
```

**Steps to reproduce**

1. run `flake8`