[Mistral] Fix fixture path in DocumentNormalizerTest

Update path to use src/platform/tests/Fixtures/ instead of src/fixtures/.

Author: OskarStark

src/platform/src/Bridge/Mistral/Tests/Contract/DocumentNormalizerTest.php

@@ -54,11 +54,11 @@ public function testNormalize(Document $file, array $expected)
     public static function normalizeDataProvider(): iterable
     {
         yield 'document from file' => [
-            Document::fromFile(\dirname(__DIR__, 6).'/fixtures/document.pdf'),
+            Document::fromFile(\dirname(__DIR__, 5).'/tests/Fixtures/document.pdf'),
             [
                 'type' => 'document_url',
                 'document_name' => 'document.pdf',
-                'document_url' => 'data:application/pdf;base64,'.base64_encode(file_get_contents(\dirname(__DIR__, 6).'/fixtures/document.pdf')),
+                'document_url' => 'data:application/pdf;base64,'.base64_encode(file_get_contents(\dirname(__DIR__, 5).'/tests/Fixtures/document.pdf')),
             ],
         ];
     }