Spring Cloud Config Let The Config Server Handle Multiple Labels Instead Of The Client

The Spring Cloud Config server can now support multiple labels (https://github.com/spring-cloud/spring-cloud-config/issues/2449). The config client no longer needs to worry about handling that on the client side. https://github.com/spring-cloud/spring-cloud-config/blob/974b7c34965ce238a7553f30d9e66629cebd531f/spring-cloud-config-client/src/main/java/org/springframework/cloud/config/client/ConfigServerConfigDataLoader.java#L116-L125