AuthorizationCodeAuthenticationProcessingFilter -> favor query request matching

[jgrandja]

The current RequestMatcher for AuthorizationCodeAuthenticationProcessingFilter uses path matching, for example: /oauth2/authorize/code/{clientAlias}

It might make more sense to use query parameter matching instead. This would potentially allow the user to reuse the redirect-uri for 2 or more ClientRegistration configured with the same clientId.

GitHub only supports setting 1 redirect-uri per client. With the current setup this poses an issue when configuring 2 or more GitHub ClientRegistration's with the same clientId