Minimal API : Converting empty string to Nullable (ex: bool?) with [FromQuery] binding

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Describe the bug

With a Minimal API endpoint like this:

`app.MapGet("foobar", ([FromQuery] bool? myBool) => Results.Ok());`

When I call it like this:

`https://my.domain/foobar?myBool=`
I get a 500 internal server error.

With controllers this worked just fine and `myBool` was `null`.

I saw a somewhat similar issue, that is already closed: https://github.com/dotnet/aspnetcore/issues/55202 but either it is wrongly closed or it was just fixed for `[FromForm]`.

The linked PR introduced this check: https://github.com/dotnet/aspnetcore/blob/1fd3d6a1b857aa774ec957c41909600f05c89624/src/Components/Endpoints/src/FormMapping/Converters/NullableConverter.cs#L61
But `Type.GetTypeCode(typeof(bool?)` returns `Object`, so this code shouldn't even work for `[FromForm]` with `bool?`, `int?`, etc.

### Expected Behavior

I would have expected that `?myBool=` would result in null if `myBool` is nullable.

### Steps To Reproduce

_No response_

### Exceptions (if any)

_No response_

### .NET Version

10.0.103

### Anything else?

_No response_