Swagger `jsonopanapi` docs link returns 404

[bendavies]

API Platform version(s) affected: 3.2.6

Description
Swagger jsonopanapi docs link returns 404

{
  "@id": "/api/v2/errors/404",
  "@type": "hydra:Error",
  "title": "An error occurred",
  "detail": "Format \"jsonopenapi\" is not supported",
  "status": 404,
  "type": "/errors/404"
}

How to reproduce
point browser at index.jsonopenapi

Possible Solution

Additional Context