fix: swagger filter params

packages/plugins/api-doc/src/server/swagger/collections/components/parameters.ts

@@ -44,8 +44,12 @@ export default (collection: Collection) => {
       name: 'filter',
       in: 'query',
       description: 'filter items',
-      schema: {
+      content: {
-        type: 'object',
+        'application/json': {
+          schema: {
+            type: 'object',
+          },
+        },
       },
     },
     sort: {