Swagger codegen is not compatible with feign 10.x version

Description

I was upgrading my application's spring boot version from 2.0.x to 2.1.x . This new version brings new version of feign (10.x). But swagger codegen maven plugin generated code is not getting compiled with with new feign version.
Further I found that swagger codegen is not generating the OAuth.java class as per 10.x version of feign and it is having compilation error.

Since Feign has changed the constructor of RetryableException class and introduced bwc, the older code is not compatible with feign's 10.x version.

Below is the new Retryable exception class:
https://github.com/OpenFeign/feign/blob/master/core/src/main/java/feign/RetryableException.java

Swagger-codegen version

3.0.8 or latest

Swagger declaration file content or url

Command line used for generation

swagger codegen maven plugin

Steps to reproduce

mvn clean install

Related issues/PRs

https://github.com/swagger-api/swagger-codegen/issues/9455

Suggest a fix/enhancement

https://github.com/swagger-api/swagger-codegen/blob/master/modules/swagger-codegen/src/main/resources/Java/libraries/feign/auth/OAuth.mustache

In the above class instantiation of RetryableException should be with constructor as per 10.x version of feign.
Please let us know when this bug will be fixed.

Start with modules/swagger-codegen/src/main/resources/Java/libraries/feign/auth/OAuth.mustache and compare its RetryableException construction with the Feign 10.x class linked in the issue. Run mvn clean install to reproduce the compilation failure. Done means generated OAuth.java compiles successfully with Feign 10.x.