This is the latest semconv package used in etcd's dependencies.
Switching to that version reduces the overall package dependencies of
the project (and helps downstream projects which track this,
e.g. Kubernetes).
Signed-off-by: Stephen Kitt <skitt@redhat.com>
To verify distributed tracing feature is correctly setup, this PR adds
an integration test for this feature.
In the process of writing the test, I discovered a goroutine leak due to
the TraceProvider not being closed. This PR fixs this issue as well.
Signed-off-by: Yingrong Zhao <yingrong.zhao@gmail.com>
