CHANGELOG-3.5: add for #11574

[YoyinZyc]

added changelog for #11574

[codecov-io]

Codecov Report

Merging #11582 into master will decrease coverage by 0.52%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #11582      +/-   ##
==========================================
- Coverage   64.68%   64.16%   -0.53%     
==========================================
  Files         403      403              
  Lines       38074    38074              
==========================================
- Hits        24628    24429     -199     
- Misses      11809    12013     +204     
+ Partials     1637     1632       -5

Impacted Files	Coverage Δ
client/keys.go	70.35% <0%> (-21.11%)	⬇️
pkg/transport/timeout_conn.go	80% <0%> (-20%)	⬇️
auth/store.go	50.76% <0%> (-17.86%)	⬇️
etcdserver/api/v3rpc/util.go	51.61% <0%> (-16.13%)	⬇️
auth/simple_token.go	86.99% <0%> (ø)	⬆️
proxy/grpcproxy/register.go	69.44% <0%> (-11.12%)	⬇️
clientv3/txn.go	100% <0%> (ø)	⬆️
clientv3/leasing/util.go	91.66% <0%> (-6.67%)	⬇️
clientv3/namespace/watch.go	87.87% <0%> (-6.07%)	⬇️
pkg/fileutil/purge.go	66% <0%> (-6%)	⬇️
... and 19 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a698ad6...05a0e36. Read the comment docs.

[spzala]

lgtm