WinForms layout issue with CheckBox and ComboBox when using HighDpiMode.PerMonitorV2

### .NET version

.NET 10

### Did it work in .NET Framework?

Not tested/verified

### Did it work in any of the earlier releases of .NET Core or .NET 5+?

_No response_

### Issue description

When a UserControl contains a CheckBox and a ComboBox, enabling
`Application.SetHighDpiMode(HighDpiMode.PerMonitorV2);`
causes a height mismatch between the controls. The ComboBox appears slightly taller, which results in two visible lines at the bottom of the control.

This only occurs when PerMonitorV2 DPI awareness is enabled.

### Steps to reproduce
(A video and a VS project are attached below as demo)
Create a UserControl containing: one CheckBox and one ComboBox

Example startup code:
```
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.SetHighDpiMode(HighDpiMode.PerMonitorV2);

Application.Run(new Form1());
}
```
Place both controls on a UserControl, aligned vertically.

https://github.com/user-attachments/assets/4e98643b-8c81-462f-844a-80f9233079b1
[CAD_VS2026.zip](https://github.com/user-attachments/files/25876676/CAD_VS2026.zip)