Auto-removing quatation marks

Parser automatically removes quatation marks from begin or end of a arguments value (i. e. -name="miliver => -name=miliver).

```
string input = "run -name=\"miliver";
var rootCommand = new RootCommand
{
new Option
(
name: "-name",
)
};
string userName;
rootCommand.Handler = CommandHandler.Create((name) =>
{
userName = name;
});
await rootCommand.InvokeAsync(args);

//userName = miliver
```
I'm not sure if this is a bug or feature? Thank you for answer.