Add support for input as value in v.recursive() getter

[Mini-ghost]

Linked issue

Resolve #440

Description

Currently, when we aim to create a valibot schema that depends on real-time data, the following code snippet is a standard approach:

const input = {
  // Your input here
};

const schema = v.recursive(() => {
  if(input.type === 'A') {
    return v.object({
      foo: v.string()
    });
  }

  return v.object({
    bar: v.number()
  });
});

const output = v.parse(schema, input);

However, this method presents challenges in abstracting the schema effectively.

If the v.recursive() function could accept a parameter—specifically, the second parameter passed to parse()—we would be able to abstract the schema with greater ease, as shown below:

// schema.ts
const schema = v.recursive((input) => {
  if(input.type === 'A') {
    return v.object({
      foo: v.string()
    });
  }

  return v.object({
    bar: v.number()
  });
});

// validate.ts
const input = {
  // Your input here
};

const output = v.parse(schema, input);

[fabian-hiller]

Thank you!