[tests] Bump pytest dependency versions.

[ChrisCummins]

No description provided.

[codecov-commenter]

Codecov Report

Merging #443 (02a43b3) into development (4ba9a7a) will decrease coverage by 1.97%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           development     #443      +/-   ##
===============================================
- Coverage        87.36%   85.38%   -1.98%     
===============================================
  Files              104      104              
  Lines             5966     5966              
===============================================
- Hits              5212     5094     -118     
- Misses             754      872     +118     

Impacted Files	Coverage Δ
...loop_tool/service/loop_tool_compilation_session.py	14.58% <0.00%> (-75.00%)	⬇️
compiler_gym/envs/loop_tool/__init__.py	69.23% <0.00%> (-20.52%)	⬇️
compiler_gym/envs/llvm/llvm_benchmark.py	85.71% <0.00%> (-1.37%)	⬇️

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[ChrisCummins]

Superseded by #453