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.

Revisa el conjunto de reglas en la página vinculada de configuración del repositorio de GitHub y compáralo con la regla de protección de ramas existente. Confirma si la restricción de push de nodejs-github-bot de la regla antigua puede reemplazarse o eliminarse sin afectar a los pull requests. Se considera terminado cuando el repositorio tiene la única configuración de protección de ramas prevista.