Bump Polyfill from 10.5.1 to 10.6.0

---
updated-dependencies:
- dependency-name: Polyfill
  dependency-version: 10.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -57,6 +57,6 @@
     <PackageVersion Include="YamlDotNet" Version="16.3.0" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.300" />
     <PackageVersion Include="Microsoft.SourceLink.AzureRepos.Git" Version="10.0.300" />
-    <PackageVersion Include="Polyfill" Version="10.5.1" />
+    <PackageVersion Include="Polyfill" Version="10.6.0" />
   </ItemGroup>
 </Project>