[java] allow setting version in the Http Client Config

[titusfortner]

Description

Adds version to the constructor and all the methods for Http Client Config
I didn't add tests because our current tests don't seem to be testing the other parameters in a way I can manage. Would need some mocks that I don't have time to figure out.

Motivation and Context

Addresses #12918 since the default is HTTP 2

[codecov-commenter]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (f02e917) 56.51% compared to head (9ce1c80) 56.51%.
Report is 9 commits behind head on trunk.

❗ Current head 9ce1c80 differs from pull request most recent head 64bcbd7. Consider uploading reports for the commit 64bcbd7 to get more accurate results

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Additional details and impacted files

@@           Coverage Diff           @@
##            trunk   #12919   +/-   ##
=======================================
  Coverage   56.51%   56.51%           
=======================================
  Files          86       86           
  Lines        5255     5255           
  Branches      187      187           
=======================================
  Hits         2970     2970           
  Misses       2098     2098           
  Partials      187      187           

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