Implement region aware event/metric ingest URIs

[jasonjkeller]

Resolves: #2748

We weren't parsing the region from the license_key and applying it to the metric and event ingest URIs. This PR fixes that.

Do not merge until after the 9.1.0 release.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.37%. Comparing base (f88d2dd) to head (7ce0b4e).
⚠️ Report is 33 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2749      +/-   ##
============================================
+ Coverage     70.35%   70.37%   +0.02%     
- Complexity    10365    10379      +14     
============================================
  Files           869      869              
  Lines         41985    42006      +21     
  Branches       6381     6385       +4     
============================================
+ Hits          29538    29562      +24     
+ Misses         9568     9563       -5     
- Partials       2879     2881       +2     

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[jeffalder]

Can you revise one of the tests to have a shorter prefix? I've been using czx as in the cross-agent tests.

[jeffalder]

Thanks @jasonjkeller !!