Function create/update fails for config_params like statement_timeout

[hsusul]

Bug

functions.create / regenerating a function via functions.update emits unquoted SET values:

SET statement_timeout TO 5s

That is invalid PostgreSQL (trailing junk after numeric literal). Values that look like identifiers (e.g. search_path TO hooks, auth) happen to work but fold case and cannot carry commas inside a single GUC value safely.

Role config creation already quotes via literal() / list-item quoting; function config_params does not.

Repro

await pgMeta.functions.create({
  name: 'test_timeout_func',
  schema: 'public',
  args: [],
  definition: 'select 1',
  return_type: 'integer',
  language: 'sql',
  behavior: 'VOLATILE',
  security_definer: false,
  config_params: { statement_timeout: '5s' },
})
// → SQL error near 5s

Also breaks body updates for any existing function that already has statement_timeout (or similar) in config_params, because update regenerates CREATE OR REPLACE from those values.

Expected

SET statement_timeout TO '5s'
SET search_path TO 'hooks', 'auth'