Fix gRPC template tests (#45702)

Author: JamesNK

src/ProjectTemplates/test/Templates.Tests/GrpcTemplateTest.cs

@@ -35,7 +35,7 @@ public ITestOutputHelper Output
     }
 
     [ConditionalTheory]
-    [SkipOnHelix("Not supported queues", Queues = "All.OSX;" + HelixConstants.Windows10Arm64 + HelixConstants.DebianArm64)]
+    [SkipOnHelix("Not supported queues", Queues = "windows.11.arm64.open;" + HelixConstants.Windows10Arm64 + HelixConstants.DebianArm64)]
     [SkipOnAlpine("https://github.com/grpc/grpc/issues/18338")]
     [InlineData(true)]
     [InlineData(false)]
@@ -54,11 +54,9 @@ public async Task GrpcTemplate(bool useProgramMain)
 
         await project.RunDotNetBuildAsync();
 
-        var isOsx = RuntimeInformation.IsOSPlatform(OSPlatform.OSX);
         var isWindowsOld = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) && Environment.OSVersion.Version < new Version(6, 2);
-        var unsupported = isOsx || isWindowsOld;
 
-        using (var serverProcess = project.StartBuiltProjectAsync(hasListeningUri: !unsupported, logger: Logger))
+        using (var serverProcess = project.StartBuiltProjectAsync(hasListeningUri: !isWindowsOld, logger: Logger))
         {
             // These templates are HTTPS + HTTP/2 only which is not supported on some platforms.
             if (isWindowsOld)
@@ -76,7 +74,7 @@ public async Task GrpcTemplate(bool useProgramMain)
             }
         }
 
-        using (var aspNetProcess = project.StartPublishedProjectAsync(hasListeningUri: !unsupported))
+        using (var aspNetProcess = project.StartPublishedProjectAsync(hasListeningUri: !isWindowsOld))
         {
             // These templates are HTTPS + HTTP/2 only which is not supported on some platforms.
             if (isWindowsOld)