[FEAT] Add support for rulesets and custom properties. #820
Description
Describe the feature or problem you’d like to solve
Add the ability to create and query rulesets as well as repository custom properties.
Proposed solution
How will it benefit GitHub MCP Server and its users?
Example prompts or workflows (for tools/toolsets only)
Can I force push to main?
List all repos in an organization with certain custom properties
Create a ruleset
Additional context
Add any other context like screenshots or mockups are helpful, if applicable.