Jocelyn N'TAKPE

**Describe the bug** I'm using both `spring-cloud-square-retrofit`and `spring-cloud-square-retrofit-core` dependencies. I've declared a Retrofit `Converter.Factory` for kotlinx.serialization. Unfortunately this `Converter.Factory` bean is registered together with the `SpringConverterFactory` declared in the `DefaultRetrofitClientConfiguration`...

Instruct Kotlin serialization to always serialize a third party interface using a specific serializer

14

**What is your use-case and why do you need this feature?** I need to serialize using kotlinx.serialization a third party interface `IApiError` returned by a Spring controller advice : ```kotlin...