optimize: fix typo

[l81893521]

Ⅰ. Describe what this PR did

Ⅱ. Does this pull request fix one issue?

fix typo

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[slievrly]

Are there more other Chinese comments?

[codecov-io]

Codecov Report

Merging #1544 into develop will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             develop    #1544   +/-   ##
==========================================
  Coverage      34.51%   34.51%           
  Complexity      2209     2209           
==========================================
  Files            431      431           
  Lines          23560    23560           
  Branches        3291     3291           
==========================================
  Hits            8132     8132           
  Misses         14334    14334           
  Partials        1094     1094

Impacted Files	Coverage Δ	Complexity Δ
...n/java/io/seata/codec/protobuf/ProtobufHelper.java	0% <ø> (ø)	0 <0> (ø)	⬇️
...ain/java/io/seata/core/rpc/netty/NettyPoolKey.java	86.48% <ø> (ø)	8 <0> (ø)	⬇️

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[l81893521]

Are there more other Chinese comments?

yes. I will check it out later.

[zjinlei]

LGTM

[xingfudeshi]

LGTM.