Add runtime param to ServerSideNotificationService

src/NzbDrone.Core/HealthCheck/ServerSideNotificationService.cs

@@ -50,6 +50,7 @@ private HealthCheck RetrieveServerChecks()
                 .AddQueryParam("version", BuildInfo.Version)
                 .AddQueryParam("os", OsInfo.Os.ToString().ToLowerInvariant())
                 .AddQueryParam("arch", RuntimeInformation.OSArchitecture)
+                .AddQueryParam("runtime", "netcore")
                 .AddQueryParam("branch", _configFileProvider.Branch)
                 .Build();