Update .NET 10 to 10.0.300 (dotnet#4287)

Co-authored-by: Malcolm Daigle <mdaigle@microsoft.com>

Author: cheenamalhotra

global.json

@@ -2,14 +2,9 @@
   "sdk":
   {
     // We currently require the .NET 10 SDK to build and test the project.
-    //
-    // GOTCHA: Our CI infrastructure for Windows uses VS 2022 which comes with MSBuild 17.x.  The
-    // .NET 10 SDK versions in the 10.0.2xx series require MSBuild 18.x, so we specify the most
-    // recent 10.0.1xx series release which is compatible with MSBuild 17.x.
-    //
-    "version": "10.0.107",
+    "version": "10.0.300",
 
-    // We cannot allow any roll forward due to the above MSBuild compatibility issues.
+    // Lock to the above version so that we can control when we take breaking sdk changes.
     "rollForward": "disable",
 
     // Do not allow pre-release versions.