Update polyfill to 10.8.1 (#2399)

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

Author: renovate[bot]

Directory.Packages.props

@@ -32,7 +32,7 @@
     <PackageVersion Include="AutoMapper" Version="16.0.0" />
     <PackageVersion Include="FluentValidation" Version="12.1.1" />
     <PackageVersion Include="MediatR" Version="14.0.0" />
-    <PackageVersion Include="Polyfill" Version="10.7.2" />
+    <PackageVersion Include="Polyfill" Version="10.8.1" />
     <PackageVersion Include="GitVersion.Tool" Version="6.7.0" />
     <PackageVersion Include="Nuke.Common" Version="9.0.4" />
     <PackageVersion Include="ReportGenerator" Version="5.5.10" />