feat: add AllSeedPeersScope for preheating

[gaius-qi]

Description

This pull request introduces changes to the preheating job functionality, specifically adding support for preheating with seed peers and refactoring related constants and methods. The most important changes include updating the scope constants, modifying the PreheatArgs struct, and implementing the preheatAllSeedPeers method.

Updates to preheating job functionality:

• manager/types/job.go: Updated scope constants to include SingleSeedPeerScope and AllSeedPeersScope, and modified the PreheatArgs struct to remove the oneof constraint for the Scope field. [1] [2]

• scheduler/job/job.go: Added the preheatAllSeedPeers method to handle preheating jobs with all seed peers, including error handling and task management.

• scheduler/job/job.go: Updated the preheat method to handle new scope constants SingleSeedPeerScope and AllSeedPeersScope.

• manager/service/job.go: Changed the default scope for preheating jobs from SinglePeerScope to SingleSeedPeerScope.

• scheduler/resource/standard/seed_peer_client.go: Added the SeedPeers method to return the seed peers working for the scheduler. [1] [2]

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

Attention: Patch coverage is 0% with 145 lines in your changes missing coverage. Please review.

Project coverage is 35.19%. Comparing base (79a845e) to head (2d6ac0d).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
scheduler/job/job.go	0.00%	134 Missing ⚠️
...heduler/resource/standard/seed_peer_client_mock.go	0.00%	8 Missing ⚠️
scheduler/resource/standard/seed_peer_client.go	0.00%	2 Missing ⚠️
manager/service/job.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3698      +/-   ##
==========================================
- Coverage   35.36%   35.19%   -0.17%     
==========================================
  Files         335      335              
  Lines       37638    37775     +137     
==========================================
- Hits        13309    13296      -13     
- Misses      23501    23649     +148     
- Partials      828      830       +2     

Flag	Coverage Δ
unittests	35.19% <0.00%> (-0.17%)	⬇️

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

Files with missing lines	Coverage Δ
manager/service/job.go	0.00% <0.00%> (ø)
scheduler/resource/standard/seed_peer_client.go	75.47% <0.00%> (-1.46%)	⬇️
...heduler/resource/standard/seed_peer_client_mock.go	14.89% <0.00%> (-0.67%)	⬇️
scheduler/job/job.go	0.00% <0.00%> (ø)

... and 4 files with indirect coverage changes

[chlins]

lgtm