migrate distributed tracing flags off experimental prefix

[omerap12]

Fixes: #19050
Move distributed tracing related flags:

• experimental-enable-distributed-tracing
• experimental-distributed-tracing-address
• experimental-distributed-tracing-service-name
• experimental-distributed-tracing-instance-id
• experimental-distributed-tracing-sampling-rate

The experimental flags are marked as deprecated and will be decommissioned in v3.7.

Please read https://github.com/etcd-io/etcd/blob/main/CONTRIBUTING.md#contribution-flow.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[k8s-ci-robot]

Hi @omerap12. Thanks for your PR.

I'm waiting for a etcd-io member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[serathius]

/ok-to-test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.82%. Comparing base (e30a4ab) to head (a5e8b66).
Report is 14 commits behind head on main.

Additional details and impacted files

Files with missing lines	Coverage Δ
server/embed/config.go	79.65% <100.00%> (+0.22%)	⬆️
server/etcdmain/config.go	68.98% <100.00%> (+1.22%)	⬆️

... and 28 files with indirect coverage changes

@@           Coverage Diff           @@
##             main   #19096   +/-   ##
=======================================
  Coverage   68.82%   68.82%           
=======================================
  Files         420      420           
  Lines       35640    35653   +13     
=======================================
+ Hits        24528    24538   +10     
- Misses       9692     9693    +1     
- Partials     1420     1422    +2     

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[k8s-ci-robot]

@omerap12: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-etcd-verify	a5e8b66	link	true	/test pull-etcd-verify

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.

[omerap12]

Hey @serathius, I’m running into some issues with gofumpt 😄