Erro na Listagem dos cursos

Segue meu arquivo principal buscar-cursos.php

<?php
require 'vendor/autoload.php';
use GuzzleHttp\Client;
use Symfony\Component\DomCrawler\Crawler;

$client = new Client();
$resposta = $client->request('GET','https://www.alura.com.br/cursos-online-programacao/php');

$html = $resposta->getBody();

$crawler =  new Crawler();
$crawler->addHtmlContent($html);

$cursos =$crawler->filter('span.card-curso__nome');

foreach($cursos as $curso){
    echo $curso->textContent. PHP_EOL;
}

Segue arquivo json:

{
    "name": "phpcaseiro/buscador-cursos",
    "description": "Buscador que busca os cursos no site da Alura",
    "type": "library",
    "authors": [
        {
            "name": "Anderson Santos",
            "email": "anderson.santos.silva@live.com"
        }
    ],
    "require": {
        "guzzlehttp/guzzle": "^6.5",
        "symfony/dom-crawler":"^4.2",
        "symfony/css-selector": "^4.4"
    }
}

Segue erro na saída do Terminal:

PS C:\xampp\htdocs\alura\composer\buscador-curso-alura> php buscar-cursos.php
PHP Fatal error:  Uncaught GuzzleHttp\Exception\RequestException: cURL error 60: SSL certificate problem: unable to get local issuer certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) in C:\xampp\htdocs\alura\composer\buscador-curso-alura\vendor\guzzlehttp\guzzle\src\Handler\CurlFactory.php:201
Stack trace:
#0 C:\xampp\htdocs\alura\composer\buscador-curso-alura\vendor\guzzlehttp\guzzle\src\Handler\CurlFactory.php(155): GuzzleHttp\Handler\CurlFactory::createRejection(Object(GuzzleHttp\Handler\EasyHandle), Array)
#1 C:\xampp\htdocs\alura\composer\buscador-curso-alura\vendor\guzzlehttp\guzzle\src\Handler\CurlFactory.php(105): GuzzleHttp\Handler\CurlFactory::finishError(Object(GuzzleHttp\Handler\CurlHandler), Object(GuzzleHttp\Handler\EasyHandle), Object(GuzzleHttp\Handler\CurlFactory))
#2 C:\xampp\htdocs\alura\composer\buscador-curso-alura\vendor\guzzlehttp\guzzle\src\Handler\CurlHandler.php(43): GuzzleHttp\Handler\CurlFactory::finish(Object(GuzzleHttp\Handler\CurlHandler), Object(GuzzleHttp\Handler\EasyHandle), in C:\xampp\htdocs\alura\composer\buscador-curso-alura\vendor\guzzlehttp\guzzle\src\Handler\CurlFactory.php on line 201

Fatal error: Uncaught GuzzleHttp\Exception\RequestException: cURL error 60: SSL certificate problem: unable to get local issuer certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) in C:\xampp\htdocs\alura\composer\buscador-curso-alura\vendor\guzzlehttp\guzzle\src\Handler\CurlFactory.php:201
Stack trace:
#0 C:\xampp\htdocs\alura\composer\buscador-curso-alura\vendor\guzzlehttp\guzzle\src\Handler\CurlFactory.php(155): GuzzleHttp\Handler\CurlFactory::createRejection(Object(GuzzleHttp\Handler\EasyHandle), Array)
#1 C:\xampp\htdocs\alura\composer\buscador-curso-alura\vendor\guzzlehttp\guzzle\src\Handler\CurlFactory.php(105): GuzzleHttp\Handler\CurlFactory#2 C:\xampp\htdocs\alura\composer\buscador-curso-alura\vendor\guzzlehttp\guzzle\src\Handler\CurlHandler.php(43): GuzzleHttp\Handler\CurlFactory::finish(Object(GuzzleHttp\Handler\CurlHandler), Object(GuzzleHttp\Handler\EasyHandle), in C:\xampp\htdocs\alura\composer\buscador-curso-alura\vendor\guzzlehttp\guzzle\src\Handler\CurlFactory.php on line 201
PS C:\xampp\htdocs\alura\composer\buscador-curso-alura> php buscar-cursos.php{
>>     "name": "phpcaseiro/buscador-cursos",
>>     "description": "Buscador que busca os cursos no site da Alura",
>>     "type": "library",
>>     "authors": [
>>         {
>>             "name": "Anderson Santos",
>>             "email": "anderson.santos.silva@live.com"
>>         }
>>     ],
>>     "require": {
>>         "guzzlehttp/guzzle": "^6.5",
>>         "symfony/dom-crawler":"^4.2",
>>         "symfony/css-selector": "^4.4"
>>     }
>> }
No linha:2 caractere:11
+     "name": "phpcaseiro/buscador-cursos",
+           ~
Token ':' inesperado na expressão ou instrução.
No linha:7 caractere:19
+             "name": "Anderson Santos",
+                   ~
Token ':' inesperado na expressão ou instrução.
No linha:10 caractere:6
+     ],
+      ~
Argumento ausente na lista de parâmetros.
No linha:12 caractere:28
+         "guzzlehttp/guzzle": "^6.5",
+                            ~
Token ':' inesperado na expressão ou instrução.
    + CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordExceptionRecordException
    + FullyQualifiedErrorId : UnexpectedToken