refactor(github): build GraphQL query without the client bundle

The eightpoints/guzzle-bundle and idci/graphql-client-bundle only
existed to build one near-static query string, and the bundle's own
HTTP transport was already bypassed in favor of Symfony HttpClient.
Build the query with sprintf/json_encode instead, drop both bundles
from config/bundles.php, and update the test double accordingly.

src/Service/Provider/GitHubProvider.php

@@ -4,8 +4,6 @@ declare(strict_types=1);
 
 namespace App\Service\Provider;
 
-use IDCI\Bundle\GraphQLClientBundle\Client\GraphQLApiClient;
-use IDCI\Bundle\GraphQLClientBundle\Client\GraphQLApiClientRegistryInterface;
 use Psr\Log\LoggerInterface;
 use Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
@@ -24,7 +22,6 @@ final class GitHubProvider implements ProviderInterface
 
     public function __construct(
         private readonly HttpClientInterface $client,
-        private readonly GraphQLApiClientRegistryInterface $registry,
         private readonly string $username,
         private readonly string $token,
         private readonly LoggerInterface $logger,
@@ -54,25 +51,14 @@ final class GitHubProvider implements ProviderInterface
         $from = (new \DateTimeImmutable('-365 days'))->format('Y-m-d\T00:00:00\Z');
         $to   = (new \DateTimeImmutable())->format('Y-m-d\T23:59:59\Z');
 
-        /** @var GraphQLApiClient $graphqlClient */
-        $graphqlClient = $this->registry->get('github');
+        $query = sprintf(
+            'query { user(login: %s) { contributionsCollection(from: %s, to: %s) { contributionCalendar { weeks { contributionDays { date contributionCount } } } } } }',
+            json_encode($this->username),
+            json_encode($from),
+            json_encode($to),
+        );
 
-        $query = $graphqlClient->buildQuery(
-            ['user' => ['login' => $this->username]],
-            [
-                'contributionsCollection' => [
-                    '_parameters' => ['from' => $from, 'to' => $to],
-                    'contributionCalendar' => [
-                        'weeks' => [
-                            'contributionDays' => ['date', 'contributionCount'],
-                        ],
-                    ],
-                ],
-            ]
-        )->getGraphQLQuery();
-
-        // GitHub's GraphQL API requires application/json — the bundle's built-in
-        // transport sends form_params, so we use Symfony HttpClient here instead.
+        // GitHub's GraphQL API requires application/json.
         // request() doesn't block; the response is read in resolveFetch() so
         // multiple providers' requests can be in flight at once.
         return $this->client->request('POST', self::GRAPHQL_URL, [