sync: pass more environment variables to the cluster

[zhijian-pro]

close #5419

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.

Project coverage is 32.86%. Comparing base (654b316) to head (fe61c60).
Report is 15 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/sync/config.go	0.00%	6 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #5422       +/-   ##
===========================================
- Coverage   50.62%   32.86%   -17.76%     
===========================================
  Files         166      133       -33     
  Lines       47542    38437     -9105     
===========================================
- Hits        24068    12634    -11434     
- Misses      20777    24548     +3771     
+ Partials     2697     1255     -1442     

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