Bump Avalonia and Avalonia.Desktop

Bumps Avalonia from 11.3.8 to 11.3.9
Bumps Avalonia.Desktop from 11.3.8 to 11.3.9

---
updated-dependencies:
- dependency-name: Avalonia
  dependency-version: 11.3.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: Avalonia.Desktop
  dependency-version: 11.3.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Editor.Desktop/Editor.Desktop.csproj

@@ -25,8 +25,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Avalonia" Version="11.3.8" />
-    <PackageReference Include="Avalonia.Desktop" Version="11.3.8" />
+    <PackageReference Include="Avalonia" Version="11.3.9" />
+    <PackageReference Include="Avalonia.Desktop" Version="11.3.9" />
     <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.3.8" />
   </ItemGroup>