Update dependency z440.atl.core to 6.15.0 (#13477)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Directory.Packages.props

@@ -79,7 +79,7 @@
     <PackageVersion Include="System.Text.Json" Version="9.0.1" />
     <PackageVersion Include="System.Threading.Tasks.Dataflow" Version="9.0.1" />
     <PackageVersion Include="TagLibSharp" Version="2.3.0" />
-    <PackageVersion Include="z440.atl.core" Version="6.14.0" />
+    <PackageVersion Include="z440.atl.core" Version="6.15.0" />
     <PackageVersion Include="TMDbLib" Version="2.2.0" />
     <PackageVersion Include="UTF.Unknown" Version="2.5.1" />
     <PackageVersion Include="Xunit.Priority" Version="1.1.6" />