[Sync EN] Create Devcontainer config (#4793)

[github-actions]

Commit: https://github.com/php/doc-en/commit/a645095d316f021101d09fa17070859288f4ccea
PR: https://github.com/php/doc-en/pull/4793

Archivos ES a actualizar

• .github/dependabot.yml

[lacatoire]

To be skipped