📌 pre-commit: Pin flake8 bugbear
📌 pre-commit: Pin flake8 bugbear

The new version will cause pre-commit to fail, we need to fix
the newly detected issues but not on frozen code (like master
or to a degree the RCs).

foosel/OctoPrint,foosel/OctoPrint,foosel/OctoPrint,foosel/OctoPrint