[Sync EN] ext/pgsql: Update outdated PostgreSQL version requirements

[github-actions]

PR: https://github.com/php/doc-en/pull/5409 (2026-03-10)

Archivos ES a actualizar

• reference/pgsql/functions/pg-affected-rows.xml
• reference/pgsql/functions/pg-client-encoding.xml
• reference/pgsql/functions/pg-escape-identifier.xml
• reference/pgsql/functions/pg-escape-literal.xml
• reference/pgsql/functions/pg-escape-string.xml
• reference/pgsql/functions/pg-execute.xml
• reference/pgsql/functions/pg-lo-create.xml
• reference/pgsql/functions/pg-parameter-status.xml
• reference/pgsql/functions/pg-prepare.xml
• reference/pgsql/functions/pg-query-params.xml
• reference/pgsql/functions/pg-result-error-field.xml
• reference/pgsql/functions/pg-unescape-bytea.xml
• reference/pgsql/functions/pg-version.xml
• reference/pgsql/reference.xml
• reference/pgsql/setup.xml