Improve automatic checks

[rytilahti]

Improve automatic checks to make it easier to contribute and to avoid common mistakes.

• flake8-bugbear: https://github.com/PyCQA/flake8-bugbear Include some more flake8 checks #915
• flake8-builtins: https://github.com/gforcada/flake8-builtins Include some more flake8 checks #915
• flake8-print: https://github.com/jbkahn/flake8-print Include some more flake8 checks #915
• flake8-simplify: https://github.com/MartinThoma/flake8-simplify Include some more flake8 checks #915
• bandit: https://github.com/PyCQA/bandit janitoring: add bandit to pre-commit checks #940
• flake8-pytest-style: https://github.com/m-burst/flake8-pytest-style
• flake8-return: https://github.com/afonasev/flake8-return
• flake8-annotations: https://github.com/sco1/flake8-annotations
• codespell: https://github.com/codespell-project/codespell - depends on Support inline ignores codespell-project/codespell#1212 / moving some data into separate files to avoid fully ignoring strings like ot or ott that are valid at times.

[rytilahti]

We should convert this project to use ruff to keep it simple, closing as this is superseded by #1694.