Bump Polyfill from 9.8.1 to 9.9.0

---
updated-dependencies:
- dependency-name: Polyfill
  dependency-version: 9.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -49,7 +49,7 @@
     <PackageVersion Include="MSTest.TestFramework" Version="3.9.2" />
     <PackageVersion Include="NSubstitute" Version="5.3.0" />
     <PackageVersion Include="NuGet.Packaging" Version="6.14.0" />
-    <PackageVersion Include="Polyfill" Version="9.8.1" />
+    <PackageVersion Include="Polyfill" Version="9.9.0" />
     <PackageVersion Include="PrettyPrompt" Version="4.1.1" />
     <PackageVersion Include="Spectre.Console" Version="0.50.0" />
     <PackageVersion Include="Spectre.Console.Analyzer" Version="1.0.0" />