Bump the avaloniaui group across 1 directory with 2 updates

Bumps the avaloniaui group with 2 updates in the / directory: [Avalonia](https://github.com/AvaloniaUI/Avalonia) and [Avalonia.Headless.XUnit](https://github.com/AvaloniaUI/Avalonia).


Updates `Avalonia` from 11.1.3 to 11.2.1
- [Release notes](https://github.com/AvaloniaUI/Avalonia/releases)
- [Commits](AvaloniaUI/Avalonia@11.1.3...11.2.1)

Updates `Avalonia.Headless.XUnit` from 11.1.3 to 11.2.1
- [Release notes](https://github.com/AvaloniaUI/Avalonia/releases)
- [Commits](AvaloniaUI/Avalonia@11.1.3...11.2.1)

---
updated-dependencies:
- dependency-name: Avalonia
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: avaloniaui
- dependency-name: Avalonia.Headless.XUnit
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: avaloniaui
...

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

src/Kinetic.Avalonia/Kinetic.Avalonia.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <ItemGroup>
     <ProjectReference Include="..\Kinetic\Kinetic.csproj" />
-    <PackageReference Include="Avalonia" Version="11.1.3" />
+    <PackageReference Include="Avalonia" Version="11.2.1" />
   </ItemGroup>
 </Project>

test/Kinetic.Avalonia.Tests/Kinetic.Avalonia.Tests.csproj

@@ -1,8 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <ItemGroup>
     <ProjectReference Include="..\..\src\Kinetic.Avalonia\Kinetic.Avalonia.csproj" />
-    <PackageReference Include="Avalonia.Headless.XUnit" Version="11.1.3" />
-    <PackageReference Include="Avalonia.Themes.Simple" Version="11.1.3" />
+    <PackageReference Include="Avalonia.Headless.XUnit" Version="11.2.1" />
+    <PackageReference Include="Avalonia.Themes.Simple" Version="11.2.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageReference Include="xunit" Version="2.4.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">