fix: Specify a non-infinite timeout when creating HttpClient and SocketsHttpHandler instances.

[tippmar-nr]

Use the configured collector timeout value instead of a hard-coded Timespan.Infinite when creating HttpClient and SocketsHttpHandler instances.

Fixes #3083

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 82.27%. Comparing base (12e1743) to head (73ae9b9).
Report is 18 commits behind head on main.

Files with missing lines	Patch %	Lines
...ic/Agent/Core/DataTransport/Client/NRHttpClient.cs	80.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3084      +/-   ##
==========================================
- Coverage   82.28%   82.27%   -0.02%     
==========================================
  Files         477      477              
  Lines       30659    30636      -23     
  Branches     3429     3424       -5     
==========================================
- Hits        25228    25206      -22     
+ Misses       4630     4627       -3     
- Partials      801      803       +2     

Flag	Coverage Δ
Agent	83.33% <80.00%> (-0.02%)	⬇️
Profiler	72.51% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ic/Agent/Core/DataTransport/Client/NRHttpClient.cs	86.27% <80.00%> (+7.89%)	⬆️

... and 1 file with indirect coverage changes

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