Add property to allow autoconfiguration of SDK telemetry version

[anuraaga]

While discussing how to reflect telemetry version in declarative config in a cross-language way (open-telemetry/semantic-conventions#3293), it would be helpful to have a traditional config property for it to be able to roll out new metrics to javaagent users. This defines otel.experimental.sdk.telemetry.version to allow that.

#7928

[codecov]

Codecov Report

❌ Patch coverage is 82.85714% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.13%. Comparing base (b56bc54) to head (a2d8066).

Files with missing lines	Patch %	Lines
.../otlp/internal/InternalTelemetryConfiguration.java	57.14%	2 Missing and 1 partial ⚠️
.../autoconfigure/InternalTelemetryConfiguration.java	57.14%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #8037      +/-   ##
============================================
- Coverage     90.16%   90.13%   -0.04%     
- Complexity     7478     7483       +5     
============================================
  Files           834      836       +2     
  Lines         22559    22588      +29     
  Branches       2239     2246       +7     
============================================
+ Hits          20341    20359      +18     
- Misses         1515     1524       +9     
- Partials        703      705       +2     

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