SemiBold font weight is thinner than Normal after update from 1.5 to 1.6

[bszymik]

Describe the bug

When using SemiBold Font weight with e.g. Roboto font, the font is actually thinner than Normal font weight,
in 1.5 there was no issue with that
Roboto font version installed in the system (by default) : 1.00000; 2011

Steps to reproduce the bug

1. Create an app with TextBlock as below:

<TextBlock FontWeight="SemiBold" FontFamily="Roboto" Text="Roboto SemiBold Size 16" FontSize="16" />
<TextBlock FontWeight="Normal" FontFamily="Roboto" Text="Roboto Normal Size 16" FontSize="16" />

2. Check with version 1.5
3. Update to version 1.6 - SemiBold text will be thinner

Expected behavior

SemiBold text for Roboto font should be bolder than normal font weight in version 1.6

Screenshots

NuGet package version

WinUI 3 - Windows App SDK 1.6.1: 1.6.240923002

Windows version

Windows 11 (22H2): Build 22621

Additional context

No response