changelog: add item to cover the fix for double barrier running into stack overflow

[ahrtr]

Signed-off-by: Benjamin Wang wachao@vmware.com

cc @mitake @ptabor @spzala @serathius

[codecov-commenter]

Codecov Report

Merging #14659 (378da24) into main (a1018db) will decrease coverage by 0.06%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main   #14659      +/-   ##
==========================================
- Coverage   75.63%   75.57%   -0.07%     
==========================================
  Files         457      457              
  Lines       37292    37292              
==========================================
- Hits        28207    28184      -23     
- Misses       7324     7334      +10     
- Partials     1761     1774      +13     

Flag	Coverage Δ
all	75.57% <ø> (-0.07%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
client/pkg/v3/tlsutil/tlsutil.go	83.33% <0.00%> (-8.34%)	⬇️
client/v3/leasing/util.go	91.66% <0.00%> (-6.67%)	⬇️
raft/rafttest/node.go	95.00% <0.00%> (-5.00%)	⬇️
server/proxy/grpcproxy/watch.go	91.90% <0.00%> (-4.63%)	⬇️
client/v3/concurrency/session.go	88.63% <0.00%> (-4.55%)	⬇️
server/storage/mvcc/kvstore_compaction.go	95.65% <0.00%> (-4.35%)	⬇️
server/etcdserver/api/v3rpc/member.go	93.54% <0.00%> (-3.23%)	⬇️
client/v3/experimental/recipes/key.go	75.34% <0.00%> (-2.74%)	⬇️
client/v3/experimental/recipes/double_barrier.go	68.83% <0.00%> (-2.60%)	⬇️
client/v3/concurrency/election.go	79.68% <0.00%> (-2.35%)	⬇️
... and 16 more

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[ahrtr]

@spzala @serathius @mitake @ptabor PTAL, thx

[ahrtr]

ping @mitake @spzala @serathius

[mitake]

LGTM, thanks @ahrtr