Merge pull request #91 from dorssel/update-dotnet-sdk-8.0.400

Update .NET SDK to 8.0.400

Author: dorssel

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "8.0.303",
+    "version": "8.0.400",
     "allowPrerelease": false,
     "rollForward": "latestFeature"
   }