Multiple Authentication Type Support

[ggpwnkthx]

openapi3/openapi3/openapi.py

Line 86 in 2580c60

self._security = {security_scheme: value}

Multiple authentication types is supported by the OpenAPI spec, but this line prevents that from being possible. Changing it to the following fixes it:

self._security.update({security_scheme: value})

[commonism]

Additionally you can have a requirement for multiple authentication providers - like username & password.
https://aiopenapi3.readthedocs.io/en/latest/advanced.html#authentication