Ignore deprecated method error

The deprecation error has been introduced with the changes in
googleapis/google-cloud-php#8617.

Until/Unless googleapis/google-cloud-php#8689 or
something similar is implemented, we need to ignore the error here.

Author: jeromegamez

src/Firebase/Factory.php

@@ -524,7 +524,7 @@ public function createFirestore(?string $databaseName = null): Contract\Firestor
     public function createStorage(): Contract\Storage
     {
         try {
-            $storageClient = new StorageClient($this->googleCloudClientConfig());
+            $storageClient = new StorageClient($this->googleCloudClientConfig()); // @phpstan-ignore method.deprecated
         } catch (Throwable $e) {
             throw new RuntimeException('Unable to create a StorageClient: '.$e->getMessage(), $e->getCode(), $e);
         }

src/Firebase/Firestore.php

@@ -23,7 +23,7 @@ private function __construct(private readonly FirestoreClient $client)
     public static function fromConfig(array $config): Contract\Firestore
     {
         try {
-            return new self(new FirestoreClient($config));
+            return new self(new FirestoreClient($config)); // @phpstan-ignore method.deprecated
         } catch (Throwable $e) {
             throw new RuntimeException('Unable to create a FirestoreClient: '.$e->getMessage(), $e->getCode(), $e);
         }