feat(openapi): Add test error

Author: ytilotti

src/Metadata/Tests/Extractor/ResourceMetadataCompatibilityTest.php

@@ -171,6 +171,7 @@ final class ResourceMetadataCompatibilityTest extends TestCase
                     'type' => 'foo_type',
                 ],
             ],
+            'errors' => null,
             'graphQlOperations' => [
                 [
                     'args' => [
@@ -510,6 +511,7 @@ final class ResourceMetadataCompatibilityTest extends TestCase
         'openapi',
         'paginationViaCursor',
         'stateOptions',
+        'errors',
         'links',
         'rules',
         'headers',