Fixed: Priority validation for indexers and download clients

(cherry picked from commit f0e320f3aa501f120721503b8256f464a31be783)

src/Radarr.Api.V3/DownloadClient/DownloadClientController.cs

@@ -1,3 +1,4 @@
+using FluentValidation;
 using NzbDrone.Core.Download;
 using NzbDrone.SignalR;
 using Radarr.Http;
@@ -13,6 +14,7 @@ namespace Radarr.Api.V3.DownloadClient
         public DownloadClientController(IBroadcastSignalRMessage signalRBroadcaster, IDownloadClientFactory downloadClientFactory)
             : base(signalRBroadcaster, downloadClientFactory, "downloadclient", ResourceMapper, BulkResourceMapper)
         {
+            SharedValidator.RuleFor(c => c.Priority).InclusiveBetween(1, 50);
         }
     }
 }

src/Radarr.Api.V3/Indexers/IndexerController.cs

@@ -1,3 +1,4 @@
+using FluentValidation;
 using NzbDrone.Core.Indexers;
 using NzbDrone.Core.Validation;
 using NzbDrone.SignalR;
@@ -16,6 +17,7 @@ namespace Radarr.Api.V3.Indexers
             DownloadClientExistsValidator downloadClientExistsValidator)
             : base(signalRBroadcaster, indexerFactory, "indexer", ResourceMapper, BulkResourceMapper)
         {
+            SharedValidator.RuleFor(c => c.Priority).InclusiveBetween(1, 50);
             SharedValidator.RuleFor(c => c.DownloadClientId).SetValidator(downloadClientExistsValidator);
         }
     }