Update sonatype snapshot repo location

[trask]

Following @laurit's lead in open-telemetry/opentelemetry-java-instrumentation#14005

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.75%. Comparing base (d5a2fa2) to head (5e9fa38).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #7411   +/-   ##
=========================================
  Coverage     89.75%   89.75%           
  Complexity     6981     6981           
=========================================
  Files           797      797           
  Lines         21165    21165           
  Branches       2057     2057           
=========================================
  Hits          18997    18997           
  Misses         1505     1505           
  Partials        663      663           

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[jkwatson]

Thanks!