Support `timeouts` attribute from the codegen framework

### Use Cases or Problem Statement

Terraform lets you set `timeouts` in your resource configuration. However, the Terraform Plugin Codegen Framework doesn't have a way to add `timeouts` in the `provider_code_spec.json` file. This means the framework can't generate code that looks like [this](https://developer.hashicorp.com/terraform/plugin/framework/resources/timeouts#attribute):

```go
func (t *exampleResource) Schema(ctx context.Context, req resource.SchemaRequest, resp *resource.SchemaResponse) {
resp.Schema = schema.Schema{
Attributes: map[string]schema.Attribute{
/* ... */
"timeouts": timeouts.Attributes(ctx, timeouts.Opts{
Create: true,
}),
},
```

I don't think the framework has built-in support for `timeouts`. I'm curious if there is an alternative approach or workaround that would allow me to include `timeouts`. Is it possible to use dynamic types, object types, or any other method to read `timeouts` value from the resource definition?

### Proposal

Modify [JSON schema](https://github.com/hashicorp/terraform-plugin-codegen-spec/blob/main/spec/v0.1/schema.json) to include special `timeouts` type.

### Additional Information

_No response_

### Code of Conduct

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