feat: support for copilot_code_review

[thejrose1984]

what

• Added copilot_code_review to the rules object in var.rulesets, with two optional boolean attributes: review_on_push (default: false) and review_draft_pull_requests (default: false)
• Added a dynamic "copilot_code_review" block in main.tf to wire the new variable into the github_repository_ruleset resource
• Bumped the minimum required GitHub provider version from >= 6.9.0 to >= 6.10.0, which is the version that introduced copilot_code_review support

why

• Configuring Copilot code review via a repository ruleset caused perpetual drift when the setting was applied manually, because the Terraform module had no way to express it
• GitHub Enterprise users need automated Copilot peer review on PRs without relying on org-level rulesets

references

• closes Support copilot code review for rulesets cloudposse-terraform-components/aws-github-repository#32
• GitHub provider PR that added support: feat: Add support for Copilot code review in repository and organization rulesets integrations/terraform-provider-github#2965

[goruha]

/terratest

[goruha]

/terratest

[github-actions]

These changes were released in v1.3.0.