Update documentation of ListCloudProviderRegions rpc. Mention that it requires a conditional permission. (#215)

Author: lomidzemikheili

gen/go/qdrant/cloud/platform/v1/platform_grpc.pb.go

@@ -43,6 +43,8 @@ service PlatformService {
   // Lists all cloud provider regions in the account identified by the given ID and cloud provider.
   // Required permissions:
   // - None (authenticated only)
+  // Conditional permissions:
+  // - read:hybrid_cloud_environments OR read:clusters - required only if request.cloud_provider_id refers to a hybrid provider.
   rpc ListCloudProviderRegions(ListCloudProviderRegionsRequest) returns (ListCloudProviderRegionsResponse) {
     // permissions
     option (common.v1.permissions) = "";