Update dependency Serilog.Sinks.File to v6

Directory.Packages.props

@@ -63,7 +63,7 @@
     <PackageVersion Include="Serilog.Settings.Configuration" Version="8.0.1" />
     <PackageVersion Include="Serilog.Sinks.Async" Version="2.0.0" />
     <PackageVersion Include="Serilog.Sinks.Console" Version="6.0.0" />
-    <PackageVersion Include="Serilog.Sinks.File" Version="5.0.0" />
+    <PackageVersion Include="Serilog.Sinks.File" Version="6.0.0" />
     <PackageVersion Include="Serilog.Sinks.Graylog" Version="3.1.1" />
     <PackageVersion Include="SerilogAnalyzer" Version="0.15.0" />
     <PackageVersion Include="SharpFuzz" Version="2.1.1" />