Test with client 8 updates

[blink1073]

Testing against client PR. I removed the client 8 pins after the builds passed.

[codecov-commenter]

Codecov Report

Base: 71.43% // Head: 71.26% // Decreases project coverage by -0.17% ⚠️

Coverage data is based on head (4711ebe) compared to base (507c697).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##              1.x     #992      +/-   ##
==========================================
- Coverage   71.43%   71.26%   -0.18%     
==========================================
  Files          62       62              
  Lines        7738     7739       +1     
  Branches     1286     1286              
==========================================
- Hits         5528     5515      -13     
- Misses       1821     1831      +10     
- Partials      389      393       +4     

Impacted Files	Coverage Δ
jupyter_server/services/kernels/handlers.py	57.68% <100.00%> (-0.97%)	⬇️
jupyter_server/services/contents/filemanager.py	70.60% <0.00%> (-1.61%)	⬇️
jupyter_server/serverapp.py	65.33% <0.00%> (-0.10%)	⬇️

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