[Sync EN] Add note that mssql_query() example uses a removed extension (#5709)

[github-actions]

Commit: https://github.com/php/doc-en/commit/0009ebd09f938e8f066779bb9bb774baed10bd8a
PR: https://github.com/php/doc-en/pull/5709

Zu aktualisierende DE-Dateien

• security/database.xml