Fixed: Priority validation for indexers and download clients

(cherry picked from commit f0e320f3aa501f120721503b8256f464a31be783)

src/Readarr.Api.V1/DownloadClient/DownloadClientController.cs

@@ -1,3 +1,4 @@
+using FluentValidation;
 using NzbDrone.Core.Download;
 using Readarr.Http;
 
@@ -12,6 +13,7 @@ namespace Readarr.Api.V1.DownloadClient
         public DownloadClientController(IDownloadClientFactory downloadClientFactory)
             : base(downloadClientFactory, "downloadclient", ResourceMapper, BulkResourceMapper)
         {
+            SharedValidator.RuleFor(c => c.Priority).InclusiveBetween(1, 50);
         }
     }
 }

src/Readarr.Api.V1/Indexers/IndexerController.cs

@@ -1,3 +1,4 @@
+using FluentValidation;
 using NzbDrone.Core.Indexers;
 using NzbDrone.Core.Validation;
 using Readarr.Http;
@@ -13,6 +14,7 @@ namespace Readarr.Api.V1.Indexers
         public IndexerController(IndexerFactory indexerFactory, DownloadClientExistsValidator downloadClientExistsValidator)
             : base(indexerFactory, "indexer", ResourceMapper, BulkResourceMapper)
         {
+            SharedValidator.RuleFor(c => c.Priority).InclusiveBetween(1, 50);
             SharedValidator.RuleFor(c => c.DownloadClientId).SetValidator(downloadClientExistsValidator);
         }
     }