utoipa-gen: Migrate to snapshot testing

utoipa-gen/src/lib.rs

@@ -3033,7 +3033,7 @@ pub fn into_responses(input: TokenStream) -> TokenStream {
 ///             .required("name")
 ///     )
 /// ));
-/// # assert_json_diff::assert_json_eq!(serde_json::to_value(&schema).unwrap(), serde_json::to_value(&generated).unwrap());
+/// # insta::assert_json_snapshot!("schema", &schema);
 /// ```
 ///
 /// [primitive]: https://doc.rust-lang.org/std/primitive/index.html

utoipa-gen/src/snapshots/doctest_lib_rs__schema.snap

@@ -0,0 +1,24 @@
+---
+source: utoipa-gen/src/lib.rs
+expression: "&schema"
+snapshot_kind: text
+---
+{
+  "type": "array",
+  "items": {
+    "type": "object",
+    "required": [
+      "id",
+      "name"
+    ],
+    "properties": {
+      "id": {
+        "type": "integer",
+        "format": "int32"
+      },
+      "name": {
+        "type": "string"
+      }
+    }
+  }
+}