pre-commit fixes

[jstucke]

• removed ruff annotation and assert rules from test files (so that missing type hints and asserts in tests don't cause the CI to fail)
• removed deprecated pre-commit check
  • The accompanying error (see below) suggested pyupgrade as a replacement, but since that is already included in ruff, we will just remove the check.

fix python encoding pragma (removed).....................................Failed
- hook id: fix-encoding-pragma
- exit code: 1

`fix-encoding-pragma` has been removed -- use `pyupgrade` from https://github.com/asottile/pyupgrade

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.50%. Comparing base (52b8198) to head (9068b34).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1463      +/-   ##
==========================================
+ Coverage   92.40%   92.50%   +0.09%     
==========================================
  Files         370      370              
  Lines       20829    20800      -29     
==========================================
- Hits        19248    19241       -7     
+ Misses       1581     1559      -22     

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