Add data download parallel files download configuration

[qiuming-best]

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Fixes #(issue)

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 61.75%. Comparing base (6ef3836) to head (89967c1).

Files	Patch %	Lines
pkg/restore/actions/csi/pvc_action.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7653      +/-   ##
==========================================
+ Coverage   61.24%   61.75%   +0.50%     
==========================================
  Files         276      276              
  Lines       31329    24714    -6615     
==========================================
- Hits        19187    15261    -3926     
+ Misses      10788     8099    -2689     
  Partials     1354     1354              

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