Skip some more flaky tests (#8194)

Author: analogrelay

src/Middleware/WebSockets/test/UnitTests/WebSocketMiddlewareTests.cs

@@ -549,7 +549,7 @@ public async Task OriginIsValidatedForWebSocketRequests(HttpStatusCode expectedC
             }
         }
 
-        [Fact]
+        [Fact(Skip = "https://github.com/aspnet/AspNetCore/issues/8187")]
         public async Task OriginIsNotValidatedForNonWebSocketRequests()
         {
             using (var server = KestrelWebSocketHelpers.CreateServer(LoggerFactory, out var port, context =>

src/ProjectTemplates/test/SpaTemplateTest/AngularTemplateTest.cs

@@ -15,7 +15,7 @@ public AngularTemplateTest(BrowserFixture browserFixture, ITestOutputHelper outp
         {
         }
 
-        [Fact]
+        [Fact(Skip = "https://github.com/aspnet/AspNetCore-Internal/issues/1854")]
         public void AngularTemplate_Works()
             => SpaTemplateImpl("angular");
     }