Stop using openapi-* dependencies

Why?

openapi-request-coercer - Ajv can do it openapi-default-setter - Ajv can do it openapi-request-validator - it’s wrapper over Ajv that can’t correctly resolve $ref. But Ajv no have troubles with resolving $ref

[sheldhur]

@cdimascio @richdouglasevans there is one more minor feature associated with a stricter fit to the described scheme which may affect on safety on projects in production. If I understand correctly, openapi-request-validator was filtering request fields what not described in scheme. Now you need to clearly indicate in schema what you want filtering fields that not described in schema. For this you need to add in the description of each schema the field additionalProperties: false

@richdouglasevans I advise you to add this to the tests.

https://github.com/epoberezkin/ajv#filtering-data

[cdimascio]

@sheldhur @richdouglasevans v1.3.0-rc.3 is now available. it replaces the old request validator with the new. feel free to try it out and file issues if you run into them