fix: hydra:view example values (#4681)

Author: divine

features/openapi/docs.feature

@@ -155,6 +155,14 @@ Feature: Documentation support
                             "type": "string",
                             "format": "iri-reference"
                         }
+                    },
+                    "example": {
+                        "@id": "string",
+                        "type": "string",
+                        "hydra:first": "string",
+                        "hydra:last": "string",
+                        "hydra:previous": "string",
+                        "hydra:next": "string"
                     }
                 },
                 "hydra:search": {

src/Hydra/JsonSchema/SchemaFactory.php

@@ -140,6 +140,14 @@ public function buildSchema(string $className, string $format = 'jsonld', string
                             'format' => 'iri-reference',
                         ],
                     ],
+                    'example' => [
+                        '@id' => 'string',
+                        'type' => 'string',
+                        'hydra:first' => 'string',
+                        'hydra:last' => 'string',
+                        'hydra:previous' => 'string',
+                        'hydra:next' => 'string',
+                    ],
                 ],
                 'hydra:search' => [
                     'type' => 'object',