Fixed enum mismatch

[kraity]

What this PR does / why we need it?

Fixed enum mismatch for issue #1578

Summary of your change

Please indicate you've done the following:

• Made sure tests are passing and test coverage is added if needed.
• Made sure commit message follow the rule of Conventional Commits specification.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed.

[codecov-commenter]

Codecov Report

Patch coverage: 64.28% and project coverage change: +0.22 🎉

Comparison is base (2534e1e) 75.78% compared to head (f257ea0) 76.00%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1581      +/-   ##
============================================
+ Coverage     75.78%   76.00%   +0.22%     
+ Complexity    20617    20546      -71     
============================================
  Files           632      620      -12     
  Lines         81398    80903     -495     
  Branches      17755    17676      -79     
============================================
- Hits          61686    61491     -195     
+ Misses        12456    12173     -283     
+ Partials       7256     7239      -17     

Impacted Files	Coverage Δ
...baba/fastjson2/reader/ObjectReaderImplEnum2X4.java	61.45% <50.00%> (+0.82%)	⬆️
...alibaba/fastjson2/reader/ObjectReaderImplEnum.java	74.64% <68.18%> (-0.54%)	⬇️

... and 20 files with indirect coverage changes

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[wenshao]

ObjectReaderImplEnum2X4 这个也要考虑

[kraity]

ObjectReaderImplEnum2X4 这个也要考虑

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