Update dependency Polly to 8.6.6 (#1691)

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

Author: renovate[bot]

Directory.Packages.props

@@ -30,7 +30,7 @@
     <PackageVersion Include="NuGet.ProjectModel" Version="7.3.0" />
     <PackageVersion Include="NuGet.Versioning" Version="7.3.0" />
     <PackageVersion Include="packageurl-dotnet" Version="1.0.0" />
-    <PackageVersion Include="Polly" Version="8.6.5" />
+    <PackageVersion Include="Polly" Version="8.6.6" />
     <PackageVersion Include="SemanticVersioning" Version="2.0.2" />
     <PackageVersion Include="Serilog" Version="4.3.1" />
     <PackageVersion Include="Serilog.Extensions.Logging" Version="8.0.0" />