Fix facade accessor

[giraz82]

Problem
Psalm inspection reports exception on projects that has laravel-request-doc as dependency

To Reproduce
Steps to reproduce the behavior:

1. composer create-project laravel/laravel:^10.0 laravel
2. cd laravel-request-docs-test
3. composer require rakutentech/laravel-request-docs
4. composer require --dev vimeo/psalm -W
5. composer require --dev psalm/plugin-laravel -W
6. Add a psalm.xml config file with following content:

<?xml version="1.0"?>
<psalm
    findUnusedCode="true"
    findUnusedBaselineEntry="true"
>
    <projectFiles>
        <directory name="src" />
    </projectFiles>
</psalm>

7. ./vendor/bin/psalm-plugin enable psalm/plugin-laravel
8. ./vendor/bin/psalm
9. See in the output:

Exception: Target class [laravel-request-docs] does not exist.
Skipping \Rakutentech\LaravelRequestDocs\LaravelRequestDocsFacade.

Expected behavior
Not to see this error.

Versions:

• Laravel Version: 10.43
• PHP Version: 8.3.1
• Laravel Request Docs Version: 2.29

[kevincobain2000]

Will merge it soon.
thanks!!

[kevincobain2000]

v2.30