Move to newer version of Roslyn LSP server

Author: mavasani

package.json

@@ -36,7 +36,7 @@
     }
   },
   "defaults": {
-    "roslyn": "4.7.0-3.23326.2",
+    "roslyn": "4.7.0-3.23328.5",
     "omniSharp": "1.39.6",
     "razor": "7.0.0-preview.23275.2"
   },