Merge pull request #449 from datalust/nblumhardt-patch-1

Update `main` to use .NET SDK 9.0.311

Author: nblumhardt

ci.global.json

@@ -1,5 +1,5 @@
 {
   "sdk": {
-    "version": "9.0.306"
+    "version": "9.0.311"
   }
 }