Add support for OTEL_SERVICE_VERSION environment variable #4081
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Changes
Add support for detecting the service version from the
OTEL_SERVICE_VERSION
environment variable like the Ruby SDK supports.The only bit I'm unsure of is the change to the Zipkin span helper for
serviceVersion
as I'm not familiar with Zipkin so don't know whether that's actually a thing.For significant contributions please make sure you have completed the following items:
CHANGELOG.md
updated for non-trivial changes