Update template versions to 4.0.1964 (#2787)

Author: michaelpeng36

build/Settings.cs

@@ -19,10 +19,10 @@ private static string config(string @default = null, [CallerMemberName] string k
                 : value;
         }
 
-        public const string DotnetIsolatedItemTemplatesVersion = "4.0.1957";
-        public const string DotnetIsolatedProjectTemplatesVersion = "4.0.1957";
-        public const string DotnetItemTemplatesVersion = "4.0.1957";
-        public const string DotnetProjectTemplatesVersion = "4.0.1957";
+        public const string DotnetIsolatedItemTemplatesVersion = "4.0.1964";
+        public const string DotnetIsolatedProjectTemplatesVersion = "4.0.1964";
+        public const string DotnetItemTemplatesVersion = "4.0.1964";
+        public const string DotnetProjectTemplatesVersion = "4.0.1964";
         public const string TemplateJsonVersion = "3.1.1648";
 
         public static readonly string SrcProjectPath = Path.GetFullPath("../src/Azure.Functions.Cli/");