Map Uri config value as string (#8234)

Author: sbomer

src/Tools/dotnet-monitor/CommonOptionsExtensions.cs

@@ -118,7 +118,8 @@ private static void MapValue(object? value, string valueName, string separator,
                     valueType.IsEnum ||
                     typeof(Guid) == valueType ||
                     typeof(string) == valueType ||
-                    typeof(TimeSpan) == valueType)
+                    typeof(TimeSpan) == valueType ||
+                    typeof(Uri) == valueType)
                 {
                     map.Add(
                         valueName,