Remove pytest pin and update deps

[alexmojaki]

Since 15r10nk/inline-snapshot#139 is fixed

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (6c4363e) to head (d33fc01).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #643   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          135       135           
  Lines        10686     10681    -5     
  Branches      1467      1465    -2     
=========================================
- Hits         10686     10681    -5     

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[alexmojaki]

Oops, forgot this was auto-merging. Oh well.

Updating pytest somehow revealed a gap in coverage in the failure case. I know that the pytest update improved executing's abilities in the context of pytest, but I don't know exactly what happened here. In any case I realized that the code was still saying that executing didn't work inside functions decorated with @logfire.instrument which is no longer true since it no longer uses AST modification. So I updated that.