Bump Polyfill from 2.2.2 to 2.3.0 in /src (#111)

Bumps [Polyfill](https://github.com/SimonCropp/Polyfill) from 2.2.2 to 2.3.0.
- [Commits](SimonCropp/Polyfill@2.2.2...2.3.0)

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

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src/Verify.CommunityToolkit.Mvvm/Verify.CommunityToolkit.Mvvm.csproj

@@ -6,7 +6,7 @@
     <PackageReference Include="Argon" Version="0.15.0" />
     <PackageReference Include="Verify" Version="23.1.0" />
     <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />
-    <PackageReference Include="Polyfill" Version="2.2.2" PrivateAssets="all" />
+    <PackageReference Include="Polyfill" Version="2.3.0" PrivateAssets="all" />
     <PackageReference Include="ProjectDefaults" Version="1.0.109" PrivateAssets="all" />
   </ItemGroup>
 </Project>