Branch protection improvements

FYI I just created a ruleset for this repo: https://github.com/nodejs/node-core-utils/settings/rules/4654889

It targets the default branch and enables:

• Restrict deletions
• Require linear history
• Require a pull request with at least one approval
• Block force pushes

Only the pull request requirements are new compared to the old branch protection rule (https://github.com/nodejs/node-core-utils/settings/branch_protection_rules/17880641)
I think we can delete that rule. The only thing that remains in it is the restriction of who can push and that only restricts the nodejs-github-bot account. I don't think there's a convenient way to port that to rulesets. We could use the bypass list but then every pull request would always be red and require collaborators to click the bypass checkbox.

Xem xét ruleset trên trang cài đặt repository GitHub được liên kết và so sánh với branch protection rule hiện có. Xác nhận xem có thể thay thế hoặc xóa hạn chế push đối với nodejs-github-bot của rule cũ mà không làm gián đoạn pull request hay không. Hoàn tất khi repository có cấu hình branch protection duy nhất như dự kiến.