Update dependency readchar to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
readchar (changelog)	==2.0.1 -> ==4.2.1

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Release Notes

magmax/python-readchar (readchar)

v4.2.1

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Fixes:

• ensure that the version-string lands where its supposed to (#​122)

Full Changelog: magmax/python-readchar@v4.2.0...v4.2.1

v4.2.0

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What's Changed

• Implement Unicode support @​sakkyoi in https://github.com/magmax/python-readchar/pull/119

New Contributors

• @​sakkyoi made their first contribution in https://github.com/magmax/python-readchar/pull/119

Full Changelog: magmax/python-readchar@v4.1.0...v4.2.0

v4.1.0

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What's Changed

• migrate from setup.cfg to pyproject.toml by @​Cube707 in https://github.com/magmax/python-readchar/pull/118

Full Changelog: magmax/python-readchar@v4.0.6...v4.1.0

v4.0.6

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changed

• removed code-duplication from key.py (#​113)

fixed

• typos (#​104, #​105)

added

• Python 3.12 to classifiers and tests (#​114)

removed

• dropped Python 3.7, as its EOL (0277fed)

v4.0.5

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added

• enabled OpenBSD OS (see #​103)

v4.0.4

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fixed

• spelling and false links
• pre-commit broken pipeline (updated pre-commit packages)
• broken shield.io badge in README

removed

• Python 3.6 from tests and classifiers

added

• Python 3.11 to classifiers and tests
• py.typed file to support mypy type-stubs

v4.0.3

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removed

• wheel is no longer a install-requirement, only a build requiremnt (if user wants wheel support, he can install it, but we shouldn't force it)
• tests_require from setup.cfg, it's not used anyway

changed

• small README formating fixups
• simplifyed dev-install. requirements.txt now containes the editable-self-install. one less setp is reuqired for setup.

added

• mdformat as pre-commit hook

v4.0.2

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added

• config class. This static class hold constants that can be changed by the user to change the libarys behavior. Use the class-attributes directly, you don't need to create instances of it!
  currently it only holds INTERRUPT_KEYS, a list of keys that will result in an KeyboardInterrupt beeing raised
• .editorconfig

changed

• documentation is now in Markdown instead of rst

v4.0.1

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added

• key.DELETE as an alias for key.SUPR

v4.0.0

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Breaking changes

• the readkey() function now raises a KeyboardInterupt when CTRL+C is pressed. (but readchar() can still be used to capture it). This is more inline with the python philosophy (IMHO) and prevents developers from accidentally trapping their users with no option to stop the programm.
• the ESCAPE_SEQUENCES variable, it's no longer used

fixes

• windows now returns strings instead of bytestrings, same as on linux
• windows now supports most special characters
• swaped LF and CR, as per #​69
• windows actually returns CR on ENTER, so the ENTER variable now points to the appropriate existing variable
• __all__ should return a list of strings
• f5-f12 had wrong codes on linux
• code coverage is much better now:

added

• extensive testing for both windows and linux
• automated workflow that runs the test on both platforms
• more keycodes for windows
• add end-of-line-fixer to pre-commit
• add LICENCE (#​44)
• mac OS and FreeBSD run the linux behavior (note in the README that they are not supported but should work)
• SHIFT+TAB support on Linux

removed

• removed python 2.7, 3.4, 3.5 and pypy support

changed

• general cleanup of config and setup files
• bump precommit-hook versions
• simplyfied .yamellinter.yml
• reworked the github actions

v3.1.0

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• corrected metadata
• bump yamllint

v3.0.6

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• reverts bad PR #​65, which broke BACKSPACE for Linux systems and didn't really fix arrow support on windows
• actually enabel arrow/special Key support for windows
• fix BACKSPACE and ENTER for windows

v3.0.5

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~Fix Windows problem with backspace and arrows codes.~

Attention: this has been reverted!

v3.0.4

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rollback to use setraw instead of setcbreak.

v3.0.3

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New upload credentials

v3.0.2

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Fixes:

• #​53, using setcbreak instead of setraw.
• Add more key codes as constants.

v3.0.1

New try...

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