ci: also build with Python 3.11

[lars-reimann]

Summary of Changes

We support Python 3.11, so we should also ensure the library can be used with it.

[lars-reimann]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ PYTHON	black	1	0	0	0.45s
✅ PYTHON	flake8	1		0	0.31s
✅ PYTHON	isort	1	0	0	0.25s
✅ PYTHON	mypy	1		0	2.27s
✅ PYTHON	pylint	1		0	2.09s
✅ REPOSITORY	git_diff	yes		no	0.03s

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[codecov]

Codecov Report

Merging #64 (af0eefb) into main (99728ff) will not change coverage.
The diff coverage is n/a.

❗ Current head af0eefb differs from pull request most recent head f9869a8. Consider uploading reports for the commit f9869a8 to get more accurate results

@@           Coverage Diff           @@
##             main      #64   +/-   ##
=======================================
  Coverage   88.54%   88.54%           
=======================================
  Files          83       83           
  Lines        3834     3834           
=======================================
  Hits         3395     3395           
  Misses        439      439           

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[lars-reimann]

Blocked by microsoft/debugpy#1246.

See python-poetry/poetry#7686 for a workaround.