chore: Update dependency Polyfill to 9.3.1

Author: renovate[bot]

src/Directory.Packages.props

@@ -10,7 +10,7 @@
     <PackageVersion Include="Microsoft.SourceLink.GitHub" PrivateAssets="All" Version="8.0.0" />
     <PackageVersion Include="MinVer" PrivateAssets="All" Version="6.0.0" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
-    <PackageVersion Include="Polyfill" Version="9.0.3" />
+    <PackageVersion Include="Polyfill" Version="9.3.1" />
     <PackageVersion Include="Roslynator.Analyzers" PrivateAssets="All" Version="4.14.1" />
     <PackageVersion Include="Scriban" Version="6.5.0" />
     <PackageVersion Include="Shouldly" Version="4.3.0" />