[FEAT]: Enable Use bypass_actor for Organization Rulesets

[deiga]

Partially resolves #3423

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Before the change?

• It was not possible to configure a User as bypass_actor in Organization Rulesets

After the change?

• Now it is possible to configure a User as bypass_actor in Organization Rulesets
• The docs contents are generated almost entirely from Org Ruleset resource schema

Pull request checklist

• Schema migrations have been created if needed (example)
• Tests for the changes have been added (for bug fixes / features)
• Docs have been reviewed and added / updated if needed (for bug fixes / features)

Does this introduce a breaking change?

Please see our docs on breaking changes to help!

• Yes
• No

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[github-actions]

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[Copilot]

Pull request overview

These provider review instructions are being used. This PR enables User as a valid bypass_actors.actor_type for the github_organization_ruleset resource and switches the organization ruleset docs to be primarily schema-generated.

Changes:

• Allow bypass_actors.actor_type = "User" in github_organization_ruleset (schema validation + docs text).
• Add an acceptance test that creates an org ruleset with a User bypass actor.
• Simplify organization_ruleset docs templating to rely on SchemaMarkdown output (and refresh generated docs accordingly).

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
github/resource_github_organization_ruleset.go	Adds resource-level description, updates bypass actor schema to accept User, and adjusts schema descriptions used for generated docs.
github/resource_github_organization_ruleset_test.go	Adds an acceptance test covering creation of an org ruleset with a User bypass actor.
templates/resources/organization_ruleset.md.tmpl	Replaces the hand-written argument docs with schema-generated markdown (SchemaMarkdown) and uses the resource description as the page summary.
docs/resources/organization_ruleset.md	Updates the rendered documentation to match the new schema-generated template output.