Add pytest 8.x compatability

[mr-c]

Works with Pytest 7.x+

We needed this patch for the Debian package of joblib as we are switching to Pytest 8.0.2+

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 95.06%. Comparing base (6310841) to head (7554ace).

Files	Patch %	Lines
joblib/test/test_parallel.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1553      +/-   ##
==========================================
- Coverage   95.16%   95.06%   -0.10%     
==========================================
  Files          44       44              
  Lines        7562     7562              
==========================================
- Hits         7196     7189       -7     
- Misses        366      373       +7     

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[tomMoral]

LGTM, thanks for taking care of the deprecation warnings before it breaks! :)