feat: add downloadRate and uploadRate for host

[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.

[gaius-qi]

This pull request includes several changes to enhance the handling of network rates and limits for hosts in the scheduler module. The key updates involve adding new fields to the Network struct, updating methods to handle these fields, and ensuring corresponding test cases are updated.

Enhancements to Network Rate Handling:

• scheduler/resource/persistentcache/host.go: Added DownloadRate, DownloadRateLimit, UploadRate, and UploadRateLimit fields to the Network struct.
• scheduler/resource/standard/host.go: Added DownloadRate, DownloadRateLimit, UploadRate, and UploadRateLimit fields to the Network struct.

Updates to Methods:

• scheduler/resource/persistentcache/host_manager.go: Updated the Load and Store methods to parse and store the new network rate and limit fields. [1] [2]
• scheduler/service/service_v2.go: Updated the StatPeer and AnnounceHost methods to include the new network rate and limit fields. [1] [2] [3]

Test Case Updates:

• scheduler/resource/standard/host_test.go: Added test cases for the new network rate and limit fields.
• scheduler/scheduling/scheduling_test.go: Updated the ConstructSuccessNormalTaskResponse and other related test cases to include the new network rate and limit fields. [1] [2]
• scheduler/service/service_v2_test.go: Updated the TestServiceV2_StatPeer and TestServiceV2_AnnounceHost test cases to handle the new network rate and limit fields. [1] [2] [3] [4] [5]
• scheduler/storage/storage_test.go: Updated test cases to include the new network rate and limit fields.

Dependency Update:

• go.mod: Updated the dependency d7y.io/api/v2 from v2.0.164 to v2.0.166.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.75%. Comparing base (8d956eb) to head (5281d44).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3548      +/-   ##
==========================================
+ Coverage   49.71%   49.75%   +0.04%     
==========================================
  Files         186      186              
  Lines       19511    19527      +16     
==========================================
+ Hits         9699     9715      +16     
- Misses       9017     9018       +1     
+ Partials      795      794       -1     

Flag	Coverage Δ
unittests	49.75% <100.00%> (+0.04%)	⬆️

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

Files with missing lines	Coverage Δ
scheduler/resource/standard/host.go	90.32% <ø> (ø)
scheduler/scheduling/scheduling.go	84.49% <100.00%> (+0.16%)	⬆️
scheduler/service/service_v2.go	78.87% <100.00%> (+0.31%)	⬆️

... and 2 files with indirect coverage changes