refactor(logging): versioned clients

[dbolduc]

Part of the work for #10170

NOTE: This one is not like the others!! There are manual updates to the build files, to use GLOBs.

There is a TODO for writing a handwritten stream updater method.... which implies handwritten tests.... which implies we might not want globs...... but let's just deal with that reality later.

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This change is 

[codecov]

Codecov Report

Base: 93.65% // Head: 93.65% // Decreases project coverage by -0.01% ⚠️

Coverage data is based on head (84f7e7e) compared to base (3a1e6ee).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10926      +/-   ##
==========================================
- Coverage   93.65%   93.65%   -0.01%     
==========================================
  Files        1717     1717              
  Lines      154871   154871              
==========================================
- Hits       145049   145045       -4     
- Misses       9822     9826       +4     

Impacted Files	Coverage Δ
...te/integration_tests/publisher_integration_test.cc	92.10% <0.00%> (-6.58%)	⬇️
google/cloud/internal/timer_queue.cc	96.10% <0.00%> (-1.30%)	⬇️
...cloud/pubsub/internal/subscription_session_test.cc	98.66% <0.00%> (ø)
google/cloud/pubsub/samples/samples.cc	87.01% <0.00%> (+0.07%)	⬆️
...le/cloud/storage/internal/curl_download_request.cc	89.29% <0.00%> (+0.33%)	⬆️

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