Backport to 3.10: Add runtime type check for ClientSession timeout param (#8022)

[igorvoltaic]

Backport to 3.10

What do these changes do?

Add runtime type check for ClientSession timeout param when creating a client.

Are there changes in behavior for the user?

A ValueError is raised when using something other than ClientTimeout in timeout param.

Related issue number

Fixes #8021

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt
• Add a new news fragment into the CHANGES folder

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (1700e9d) 97.37% compared to head (d5cd299) 97.37%.
Report is 6 commits behind head on 3.10.

Additional details and impacted files

@@           Coverage Diff           @@
##             3.10    #8026   +/-   ##
=======================================
  Coverage   97.37%   97.37%           
=======================================
  Files         108      108           
  Lines       32735    32760   +25     
  Branches     3894     3896    +2     
=======================================
+ Hits        31876    31901   +25     
  Misses        656      656           
  Partials      203      203           

Flag	Coverage Δ
CI-GHA	97.28% <100.00%> (+<0.01%)	⬆️
OS-Linux	96.98% <100.00%> (+<0.01%)	⬆️
OS-Windows	94.49% <100.00%> (+0.01%)	⬆️
OS-macOS	96.79% <100.00%> (+<0.01%)	⬆️
Py-3.10.11	94.39% <100.00%> (+<0.01%)	⬆️
Py-3.10.13	96.76% <100.00%> (+<0.01%)	⬆️
Py-3.11.7	96.52% <100.00%> (+<0.01%)	⬆️
Py-3.8.10	94.36% <100.00%> (+<0.01%)	⬆️
Py-3.8.18	96.70% <100.00%> (+<0.01%)	⬆️
Py-3.9.13	94.38% <100.00%> (+0.01%)	⬆️
Py-3.9.18	96.75% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.13	?
Py-pypy7.3.14	96.29% <100.00%> (?)
VM-macos	96.79% <100.00%> (+<0.01%)	⬆️
VM-ubuntu	96.98% <100.00%> (+<0.01%)	⬆️
VM-windows	94.49% <100.00%> (+0.01%)	⬆️

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