CI updates (#6167)

* replaced flake8 with ruff
mostly for speed improvements

* fix codespell error

* move config section

* added isort again

* move djlint config to pyproject

* moved ruff section

* remove flake8 from code base

* remove flake8 from code base

* fix djlint syntax

* fix removed sections

* fix requirements file

* fix getattr useage

* auto fixed docstring

* adapted ruff settings to better fit code base

* reorder order of operations

* adjust checks

* disable autofix/format

* fixed reqs

* remove flake8 section from setup.cfg

* moved isort config

* added missing toml req

* fixed req

* fixed source path

InvenTree/plugins/__init__.py

@@ -1,5 +1,4 @@
-"""
-Directory for custom plugin development.
+"""Directory for custom plugin development.
 
 Please read the docs for more information https://docs.inventree.org/en/latest/extend/plugins/#local-directory
 """