Laravel - Class 'Firebase\JWT\CachedKeySet' not found - php

Question

I am trying to integrate firebase/php-jwt into my Laravel project.
I added the following code from the firebase/php-jwt to test it out.
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use GuzzleHttp\Client;
use GuzzleHttp;
use Phpfastcache\CacheManager;
use Firebase\JWT\CachedKeySet;
use Firebase\JWT\JWT;
class MyUserController extends Controller
{
public function searchUser(Request $request)
{
$jwksUri = 'omitted';
// Create an HTTP client (can be any PSR-7 compatible HTTP client)
$httpClient = new Client();
// Create an HTTP request factory (can be any PSR-17 compatible HTTP request factory)
$httpFactory = new GuzzleHttp\Psr7\HttpFactory();
// Create a cache item pool (can be any PSR-6 compatible cache item pool)
$cacheItemPool = CacheManager::getInstance('files');
$keySet = new CachedKeySet(
$jwksUri,
$httpClient,
$httpFactory,
$cacheItemPool,
null, // $expiresAfter int seconds to set the JWKS to expire
true // $rateLimit true to enable rate limit of 10 RPS on lookup of invalid keys
);
$decoded = JWT::decode($jwt, $keySet);
$token = $request->bearerToken();
dd($token);
}
}
But I am getting the following error when I run the code
Class 'Firebase\JWT\CachedKeySet' not found
I found a similar question here and I have tried adding the require statement for vendor/autoload.php and it didn't work for me.
I am using PHP version 7.4.29.
Here is my composer.json
{
"name": "laravel/lumen",
"description": "The Laravel Lumen Framework.",
"keywords": ["framework", "laravel", "lumen"],
"license": "MIT",
"type": "project",
"require": {
"php": "^7.3|^8.0",
"firebase/php-jwt": "^6.1",
"flipbox/lumen-generator": "^8.2",
"guzzlehttp/guzzle": "^7.0",
"itsgoingd/clockwork": "^5.1",
"laravel/lumen-framework": "^8.3.1",
"phpfastcache/phpfastcache": "^8.1",
"symfony/psr-http-message-bridge": "^2.1"
},
"require-dev": {
"fakerphp/faker": "^1.9.1",
"mockery/mockery": "^1.3.1",
"phpunit/phpunit": "^9.5.10"
},
"autoload": {
"psr-4": {
"App\\": "app/",
"Database\\Factories\\": "database/factories/",
"Database\\Seeders\\": "database/seeders/"
}
},
"autoload-dev": {
"classmap": [
"tests/"
]
},
"config": {
"preferred-install": "dist",
"sort-packages": true,
"optimize-autoloader": true
},
"minimum-stability": "dev",
"prefer-stable": true,
"scripts": {
"post-root-package-install": [
"#php -r \"file_exists('.env') || copy('.env.example', '.env');\""
]
},
"symfony/psr-http-message-bridge": "0.2"
}
So how do I fix this?