Changes to Filter bills

added BillStatusFilter to the filter/status request property allOf list

the filter/status request property type changed from object to no type

removed the request property filter/status/equalTo

removed the request property filter/status/in

removed the request property filter/status/notEqualTo

removed the request property filter/status/notIn

added the new optional request property filter/updatedAt

the response's body type changed from object to no type for status 422

removed the required property details from the response with the 422 status

removed the required property error from the response with the 400 status

removed the required property error from the response with the 401 status

removed the required property error from the response with the 422 status

removed the required property message from the response with the 400 status

removed the required property message from the response with the 401 status

removed the required property message from the response with the 422 status

added Error subschema #2 to the response body allOf list for the response status 422

media type application/json was changed to a more specific media type application/problem+json for the response status 400

media type application/json was changed to a more specific media type application/problem+json for the response status 401

media type application/json was changed to a more specific media type application/problem+json for the response status 422

added the optional property code to the response with the 400 status

added the optional property code to the response with the 401 status

added the optional property detail to the response with the 400 status

added the optional property detail to the response with the 401 status

added the optional property errors to the response with the 200 status

added the optional property errors to the response with the 400 status

added the optional property errors to the response with the 401 status

added the optional property instance to the response with the 400 status

added the optional property instance to the response with the 401 status

added the required property status to the response with the 400 status

added the required property status to the response with the 401 status

added the required property title to the response with the 400 status

added the required property title to the response with the 401 status

added the required property type to the response with the 400 status

added the required property type to the response with the 401 status