fix(openapi): sync version and deprecation flag with source spec

Update mx_platform_api.yml to match v20111101.yaml source file:
- Change version from 0.1.0 to '20111101' to match source specification
- Add missing deprecated: true flag to deprecatedRequestPaymentProcessorAuthorizationCode operation

These changes ensure the compiled spec is a carbon copy of the source file.

Author: Nicki Nixon

openapi/mx_platform_api.yml

@@ -5,7 +5,7 @@ info:
     url: https://www.mx.com/products/platform-api
   description: The MX Platform API is a powerful, fully-featured API designed to make aggregating and enhancing financial data easy and reliable. It can seamlessly connect your app or website to tens of thousands of financial institutions.
   title: MX Platform API
-  version: 0.1.0
+  version: '20111101'
 servers:
   - url: https://api.mx.com
   - url: https://int-api.mx.com
@@ -254,6 +254,7 @@ paths:
     post:
       description: "(This endpoint is deprecated. Clients should use `/authorization_code`.) Clients use this endpoint to request an authorization_code according to a user, member, and account specified in the request body. Clients then pass this code to processors. Processor access is scoped only to the user/member/account specified in this request. Before requesting an authorization_code, clients must have verified the specified member."
       operationId: deprecatedRequestPaymentProcessorAuthorizationCode
+      deprecated: true
       requestBody:
         content:
           application/json: