feat: add scheduler configuration support

[chlins]

This pull request introduces support for a Config field in the Scheduler model, enabling more flexible configuration management. The changes include updates to the database model, service layer, and request types to handle the new configuration field.

Model Updates:

• Added a new Config field to the Scheduler model in manager/models/scheduler.go, represented as a JSONMap for storing configuration data.

Service Layer Enhancements:

• Updated the CreateScheduler method in manager/service/scheduler.go to map the Config field from the request using structure.StructToMap. This ensures proper serialization of the configuration object.
• Modified the UpdateScheduler method to handle updates to the Config field, including serialization of the configuration object.

Request Type Changes:

• Added a Config field to both CreateSchedulerRequest and UpdateSchedulerRequest in manager/types/scheduler.go, allowing clients to specify configuration data when creating or updating a scheduler. [1] [2]
• Introduced a new SchedulerConfig type to define the structure of the configuration object, including fields like ManagerKeepAliveInterval.

Dependency Update:

• Imported the structure package in manager/service/scheduler.go to facilitate conversion of configuration objects to maps.

Description

Related Issue

#4179

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.

[Liam-Zhao]

LGTM

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 16 lines in your changes missing coverage. Please review.

Project coverage is 32.63%. Comparing base (2a30115) to head (fdab4fa).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
manager/service/scheduler.go	0.00%	16 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4212      +/-   ##
==========================================
- Coverage   32.65%   32.63%   -0.02%     
==========================================
  Files         350      350              
  Lines       41188    41204      +16     
==========================================
- Hits        13451    13448       -3     
- Misses      26849    26867      +18     
- Partials      888      889       +1     

Flag	Coverage Δ
unittests	32.63% <0.00%> (-0.02%)	⬇️

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

Files with missing lines	Coverage Δ
manager/service/scheduler.go	0.00% <0.00%> (ø)

... and 1 file with indirect coverage changes

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[gaius-qi]

LGTM