enhance: make serialization be part of sync task to support file format change

[tedxu]

See #38945

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.54%. Comparing base (acc8fb7) to head (0363073).
Report is 41 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (acc8fb7) and HEAD (0363073). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (acc8fb7)	HEAD (0363073)
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Additional details and impacted files

@@             Coverage Diff             @@
##           master   #38946       +/-   ##
===========================================
- Coverage   81.08%   69.54%   -11.54%     
===========================================
  Files        1381      296     -1085     
  Lines      195251    26536   -168715     
===========================================
- Hits       158321    18455   -139866     
+ Misses      31345     8081    -23264     
+ Partials     5585        0     -5585     

Components	Coverage Δ
Client	∅ <ø> (∅)
Core	69.54% <ø> (+0.20%)	⬆️
Go	∅ <ø> (∅)

see 1118 files with indirect coverage changes