optimize: fix typo

[andyqian]

Ⅰ. Describe what this PR did

fix typo

[codecov-io]

Codecov Report

Merging #1601 into develop will decrease coverage by 0.02%.
The diff coverage is 100%.

@@              Coverage Diff              @@
##             develop    #1601      +/-   ##
=============================================
- Coverage      46.44%   46.42%   -0.03%     
  Complexity      1713     1713              
=============================================
  Files            350      350              
  Lines          12827    12827              
  Branches        1615     1615              
=============================================
- Hits            5958     5955       -3     
- Misses          6222     6224       +2     
- Partials         647      648       +1

Impacted Files	Coverage Δ	Complexity Δ
...c/main/java/io/seata/common/util/DurationUtil.java	100% <100%> (ø)	16 <0> (ø)	⬇️
...server/store/file/FileTransactionStoreManager.java	45.99% <0%> (-1.05%)	19% <0%> (ø)

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[xingfudeshi]

LGTM.

[l81893521]

LGTM

[zjinlei]

LGTM

[funky-eyes]

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