Bump Avalonia and Avalonia.Desktop

Bumps Avalonia from 12.0.5 to 12.1.1
Bumps Avalonia.Desktop from 12.0.5 to 12.1.1

---
updated-dependencies:
- dependency-name: Avalonia
  dependency-version: 12.1.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: Avalonia.Desktop
  dependency-version: 12.1.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

BabySmash.Linux/BabySmash.Linux.csproj

@@ -26,8 +26,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Avalonia" Version="12.0.5" />
-    <PackageReference Include="Avalonia.Desktop" Version="12.0.5" />
+    <PackageReference Include="Avalonia" Version="12.1.1" />
+    <PackageReference Include="Avalonia.Desktop" Version="12.1.1" />
     <PackageReference Include="Avalonia.Themes.Fluent" Version="12.0.5" />
     <PackageReference Include="Avalonia.Fonts.Inter" Version="12.0.5" />
     <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->