Bump Avalonia from 11.3.12 to 11.3.13

---
updated-dependencies:
- dependency-name: Avalonia
  dependency-version: 11.3.13
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/FlowForge.UI/FlowForge.UI.csproj

@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Avalonia" Version="11.3.12" />
+    <PackageReference Include="Avalonia" Version="11.3.13" />
     <PackageReference Include="Avalonia.Desktop" Version="11.3.12" />
     <PackageReference Include="Avalonia.Themes.Fluent" Version="11.3.12" />
     <PackageReference Include="Avalonia.Fonts.Inter" Version="11.3.12" />