[main] Source code updates from dotnet/dotnet

eng/Version.Details.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
-  <Source Uri="https://github.com/dotnet/dotnet" Mapping="msbuild" Sha="7b9ad20ba1d45df5a99fdd9dedbf3bfe6a6fc24f" BarId="296906" />
+  <Source Uri="https://github.com/dotnet/dotnet" Mapping="msbuild" Sha="887f3d5a26e1001ee2777afde10cadcacb8cc735" BarId="297286" />
   <ProductDependencies>
     <!-- Necessary for source-build. This allows the live version of the package to be used by source-build. -->
     <Dependency Name="System.CodeDom" Version="9.0.11">

src/Build.UnitTests/BackEnd/BuildManager_Tests.cs

@@ -1513,12 +1513,14 @@ public void CancelledBuildWithUnexecutedSubmission()
         }
 
 #pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously: needs to be async for xunit's timeout system
+#pragma warning disable IDE0390 // Method can be made synchronous
         /// <summary>
         /// A canceled build
         /// </summary>
         [Fact(Timeout = 20_000)]
         public async System.Threading.Tasks.Task CancelledBuild()
 #pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
+#pragma warning restore IDE0390 // Method can be made synchronous
         {
             Console.WriteLine("Starting CancelledBuild test that is known to hang.");
             string contents = CleanupFileContents(@"

src/Framework/Telemetry/BuildInsights.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System.Collections.Generic;

src/Framework/Telemetry/BuildTelemetry.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System;