Optional authentication not rendered properly

[arvidfm]

Describe the bug
The recommended way of representing optional authentication on an endpoint is something like:

security:
  - {}
  - basic: []

Unfortunately this doesn't render properly in Redoc.

Expected behavior
The "authorizations" section of the endpoint documentation should clearly communicate that it is an optionally authenticated endpoint.

Minimal reproducible OpenAPI snippet(if possible)

openapi: 3.1.0
info:
  title: Optional auth
  version: 1.0.0
paths:
  /info:
    get:
      summary: Get info
      operationId: getInfo
      security:
        - {}
        - basic: []

components:
  securitySchemes:
    basic:
      scheme: basic
      type: http

Screenshots

Additional context
Add any other context about the problem here.

[AlexVarchuk]

closed via #2134