minor #378 [Examples] Use function http_client() (OskarStark)

This PR was merged into the main branch.

Discussion
----------

[Examples] Use function `http_client()`

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Docs?         | no
| Issues        | --
| License       | MIT

Commits
-------

520022a [Examples] Use function `http_client()`

Author: OskarStark

examples/rag/neo4j.php

@@ -24,14 +24,13 @@
 use Symfony\AI\Store\Document\TextDocument;
 use Symfony\AI\Store\Document\Vectorizer;
 use Symfony\AI\Store\Indexer;
-use Symfony\Component\HttpClient\HttpClient;
 use Symfony\Component\Uid\Uuid;
 
 require_once dirname(__DIR__).'/bootstrap.php';
 
 // initialize the store
 $store = new Store(
-    httpClient: HttpClient::create(),
+    httpClient: http_client(),
     endpointUrl: env('NEO4J_HOST'),
     username: env('NEO4J_USERNAME'),
     password: env('NEO4J_PASSWORD'),

examples/rag/qdrant.php

@@ -24,14 +24,13 @@
 use Symfony\AI\Store\Document\TextDocument;
 use Symfony\AI\Store\Document\Vectorizer;
 use Symfony\AI\Store\Indexer;
-use Symfony\Component\HttpClient\HttpClient;
 use Symfony\Component\Uid\Uuid;
 
 require_once dirname(__DIR__).'/bootstrap.php';
 
 // initialize the store
 $store = new Store(
-    HttpClient::create(),
+    http_client(),
     env('QDRANT_HOST'),
     env('QDRANT_SERVICE_API_KEY'),
     'movies',

examples/rag/surrealdb.php

@@ -24,14 +24,13 @@
 use Symfony\AI\Store\Document\TextDocument;
 use Symfony\AI\Store\Document\Vectorizer;
 use Symfony\AI\Store\Indexer;
-use Symfony\Component\HttpClient\HttpClient;
 use Symfony\Component\Uid\Uuid;
 
 require_once dirname(__DIR__).'/bootstrap.php';
 
 // initialize the store
 $store = new Store(
-    httpClient: HttpClient::create(),
+    httpClient: http_client(),
     endpointUrl: env('SURREALDB_HOST'),
     user: env('SURREALDB_USER'),
     password: env('SURREALDB_PASS'),