rendering error with preact

• Method of installation: npm
• Swagger-UI version: 4.15.2
• Swagger/OpenAPI version: 3.0.0
• build tool: any

Example Swagger/OpenAPI definition:

openapi: 3.0.0
paths:
  /entities:
    post:
      requestBody:
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                title:
                  type: string

Swagger-UI configuration options:

<SwaggerUI url='test.yaml'/>

Describe the bug you're encountering

Render error occurs on requestBody content

To reproduce...

• clone https://github.com/cherepanov/preact_test_swagger
• npm install
• npm run start
• click on method definition

OR

https://codesandbox.io/s/github/cherepanov/preact_test_swagger

Screenshots

Additional context or thoughts

related #8218

debug.js:328 Uncaught Error: Objects are not valid as a child. Encountered an object with the keys {size,has,get,__iterateUncached,__iteratorUncached}.

  in tbody
  in p3
  in WithSystem(p3)
  in Connect(WithSystem(p3))
  in Connect(WithSystem(p3))
  in ht
  in WithErrorBoundary(ht)
  in Te2
  in 
  in G3
  in WithErrorBoundary(G3)
  in WithSystem(WithErrorBoundary(G3))
  in Connect(WithSystem(WithErrorBoundary(G3)))
  in Connect(WithSystem(WithErrorBoundary(G3)))
  in we
  in WithSystem(we)
  in Connect(WithSystem(we))
  in Connect(WithSystem(we))
  in Ar
  in WithErrorBoundary(Ar)
  in WithSystem(WithErrorBoundary(Ar))
  in Connect(WithSystem(WithErrorBoundary(Ar)))
  in Connect(WithSystem(WithErrorBoundary(Ar)))
  in Z3
  in WithErrorBoundary(Z3)
  in WithSystem(WithErrorBoundary(Z3))
  in Connect(WithSystem(WithErrorBoundary(Z3)))
  in Connect(WithSystem(WithErrorBoundary(Z3)))
  in WithRoot(Connect(WithSystem(WithErrorBoundary(Z3))))
  in SwaggerUI2 (at /home/ac/Downloads/test_swagger/src/components/Swagger/index.jsx:7)
  in Swagger (at /home/ac/Downloads/test_swagger/src/components/Home.jsx:15)
  in Home (at /home/ac/Downloads/test_swagger/src/app.tsx:21)
  in App (at /home/ac/Downloads/test_swagger/src/main.tsx:6)

Reproduce the failure using the linked cherepanov/preact_test_swagger project with npm install and npm run start, then open the method definition for the multipart/form-data request body. Trace the requestBody rendering path from the SwaggerUI entry point shown in the reproduction and verify that the definition renders without the reported object-as-a-child error.