CHANGELOG/CHANGELOG-3.4.md: update changelog for gRPC metadata printing

[mohamedawnallah]

Description

In this commit, we update the changelog for gRPC metadata printing in release 3.4 which is mainly a backport from PR #18311.

[k8s-ci-robot]

Hi @mohamedawnallah. 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.

I understand the commands that are listed here.

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.

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

Attention: Patch coverage is 11.11111% with 24 lines in your changes missing coverage. Please review.

Project coverage is 68.97%. Comparing base (eeeb7e0) to head (575fff8).
Report is 4 commits behind head on main.

❗ Current head 575fff8 differs from pull request most recent head 4bf1861

Please upload reports for the commit 4bf1861 to get more accurate results.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

Files	Coverage Δ
server/embed/config_logging.go	51.53% <11.11%> (+0.29%)	⬆️

... and 16 files with indirect coverage changes

@@            Coverage Diff             @@
##             main   #18316      +/-   ##
==========================================
- Coverage   69.00%   68.97%   -0.03%     
==========================================
  Files         417      417              
  Lines       35332    35333       +1     
==========================================
- Hits        24380    24371       -9     
- Misses       9540     9554      +14     
+ Partials     1412     1408       -4     

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update eeeb7e0...4bf1861. Read the comment docs.

[jmhbnz]

Just a typo to fix then this is good to do :)

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahrtr, jmhbnz, mohamedawnallah

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [ahrtr,jmhbnz]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment