changelog: update Go entry to reflect 1.22.11 update

[ivanvc]

Update 3.4.36 and 3.5.18 Go entries to reflect the 1.22.11 update.

Part of #19210.

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.78%. Comparing base (5d47d7f) to head (1898aec).
Report is 7 commits behind head on main.

Additional details and impacted files

see 20 files with indirect coverage changes

@@            Coverage Diff             @@
##             main   #19224      +/-   ##
==========================================
+ Coverage   68.76%   68.78%   +0.01%     
==========================================
  Files         420      420              
  Lines       35650    35650              
==========================================
+ Hits        24514    24521       +7     
+ Misses       9714     9705       -9     
- Partials     1422     1424       +2     

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