Bump Avalonia.Themes.Fluent and Avalonia

Bumps [Avalonia.Themes.Fluent](https://github.com/AvaloniaUI/Avalonia) and [Avalonia](https://github.com/AvaloniaUI/Avalonia). These dependencies needed to be updated together.

Updates `Avalonia.Themes.Fluent` from 11.0.10 to 11.1.2
- [Release notes](https://github.com/AvaloniaUI/Avalonia/releases)
- [Commits](AvaloniaUI/Avalonia@11.0.10...11.1.2)

Updates `Avalonia` from 11.0.10 to 11.1.2
- [Release notes](https://github.com/AvaloniaUI/Avalonia/releases)
- [Commits](AvaloniaUI/Avalonia@11.0.10...11.1.2)

---
updated-dependencies:
- dependency-name: Avalonia.Themes.Fluent
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: Avalonia
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Taskington.Gui/Taskington.Gui.csproj

@@ -31,11 +31,11 @@
 		<Content Include="Assets\AppIcon.ico" />
 	</ItemGroup>
 	<ItemGroup>
-		<PackageReference Include="Avalonia" Version="11.0.10" />
+		<PackageReference Include="Avalonia" Version="11.1.2" />
 		<PackageReference Include="Avalonia.Desktop" Version="11.0.10" />
 		<PackageReference Include="Avalonia.Diagnostics" Version="11.0.10" />
 		<PackageReference Include="Avalonia.ReactiveUI" Version="11.0.10" />
-		<PackageReference Include="Avalonia.Themes.Fluent" Version="11.0.10" />
+		<PackageReference Include="Avalonia.Themes.Fluent" Version="11.1.2" />
 		<PackageReference Include="Projektanker.Icons.Avalonia.FontAwesome" Version="9.3.0" />
 		<PackageReference Include="GitVersion.MsBuild" Version="5.12.0">
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>