Skip dotnet watch tests on ARM (#24846)

Author: Tratcher

src/Tools/dotnet-watch/test/DotNetWatcherTests.cs

@@ -35,6 +35,7 @@ public async Task RunsWithDotnetWatchEnvVariable()
         }
 
         [Fact]
+        [SkipOnHelix("https://github.com/dotnet/aspnetcore/issues/24841", Queues = "Windows.10.Arm64.Open")]
         public async Task RunsWithIterationEnvVariable()
         {
             await _app.StartWatcherAsync();

src/Tools/dotnet-watch/test/NoDepsAppTests.cs

@@ -43,6 +43,7 @@ public async Task RestartProcessOnFileChange()
         }
 
         [Fact]
+        [SkipOnHelix("https://github.com/dotnet/aspnetcore/issues/24841", Queues = "Windows.10.Arm64.Open")]
         public async Task RestartProcessThatTerminatesAfterFileChange()
         {
             await _app.StartWatcherAsync();