Upgrade to py311, drop py37

[trappitsch]

:- Update pyproject and bumpversion config

• update github workflows

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (main@49091af). Click here to learn what that means.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #85   +/-   ##
=======================================
  Coverage        ?   97.46%           
=======================================
  Files           ?       24           
  Lines           ?     1501           
  Branches        ?        0           
=======================================
  Hits            ?     1463           
  Misses          ?       38           
  Partials        ?        0           

Flag	Coverage Δ
unittests	97.46% <0.00%> (?)

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