Fix De Lijn 'tzinfo' error (#73502)
Fix De Lijn 'tzinfo' error (#73502)

* Fix De Lijn component tzinfo error

This fix should update the issue "Error:'str' object has no attribute 'tzinfo'" (issue #67455)

* fix Black and isort errors

fixing errors from Black and isort CI validation

* Fix black and flake8 issues

Fixing black and flake8 issues to pass CI
w1ll1am23/home-assistant,w1ll1am23/home-assistant,mezz64/home-assistant,nkgilley/home-assistant,mezz64/home-assistant,nkgilley/home-assistant