profiles: fix versioning in selector (#551)

Author: florianl

opentelemetry/proto/collector/profiles/v1experimental/profiles_service_http.yaml

@@ -4,6 +4,6 @@ type: google.api.Service
 config_version: 3
 http:
  rules:
- - selector: opentelemetry.proto.collector.profiles.v1.ProfilesService.Export
+ - selector: opentelemetry.proto.collector.profiles.v1experimental.ProfilesService.Export
    post: /v1experimental/profiles
    body: "*"