Enables compile time type checking for zod parsers.

Usage:

import { zu } from 'zod_utilz'
const schemaWithTypedParsers = zu.useTypedParsers( z.literal( 'foo' ) )

schemaWithTypedParsers.parse( 'foo' )
// no ts errors

schemaWithTypedParsers.parse( 'bar' )
//                            ^^^^^
// Argument of type '"bar"' is not assignable to parameter of type '"foo"'