Spring Cloud Config Profiles with - in the name cause 404 from config server

Describe the bug

Spring Cloud Config Server version 3.1.1 Spring Cloud Config Client version 3.1.1

When a label is not provided the config client will make a request to the /{name}/{profile} endpoint. As of this change - https://github.com/spring-cloud/spring-cloud-config/pull/2031 - the EnvironmentController no longer supports profiles with a - present in their name and a 404 is returned.

Sample

Make a request to a running config server using a profile with a - in it. For example: http://localhost:8888/example-service/cloud,pr-acceptance will return a 404. If the offending profile is removed or the - is removed from the profile name it works as expected. The client will log the following warning: Could not locate PropertySource: None of labels [] found