feat: optimize parameters in seed peer DownloadTask

[gaius-qi]

Description

Related Issue

Motivation and Context

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[codecov]

Codecov Report

Merging #2947 (9781118) into main (1643750) will decrease coverage by 0.04%.
Report is 8 commits behind head on main.
The diff coverage is 50.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2947      +/-   ##
==========================================
- Coverage   51.09%   51.06%   -0.04%     
==========================================
  Files         161      161              
  Lines       21836    21836              
==========================================
- Hits        11158    11151       -7     
- Misses      10020    10025       +5     
- Partials      658      660       +2     

Flag	Coverage Δ
Object-compatibility-e2etests	?
e2etests	?
unittests	51.06% <50.00%> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
scheduler/service/service_v2.go	84.89% <100.00%> (ø)
scheduler/resource/seed_peer.go	19.70% <0.00%> (ø)
scheduler/resource/seed_peer_mock.go	0.00% <0.00%> (ø)

... and 3 files with indirect coverage changes