chore(deps): update dependency avalonia.diagnostics to 11.3.15

Author: renovate[bot]

src/Directory.Packages.props

@@ -22,7 +22,7 @@
     <PackageVersion Include="Avalonia.Themes.Fluent" Version="12.0.2" />
     <PackageVersion Include="Avalonia.Fonts.Inter" Version="12.0.2" />
     <PackageVersion Include="Avalonia.ReactiveUI" Version="11.3.8" />
-    <PackageVersion Include="Avalonia.Diagnostics" Version="11.3.14" />
+    <PackageVersion Include="Avalonia.Diagnostics" Version="11.3.15" />
     <PackageVersion Include="Avalonia.Desktop" Version="12.0.2" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Debug" Version="10.0.5" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />