Bump Polly from 8.2.0 to 8.3.1 in /Source

Bumps [Polly](https://github.com/App-vNext/Polly) from 8.2.0 to 8.3.1.
- [Release notes](https://github.com/App-vNext/Polly/releases)
- [Changelog](https://github.com/App-vNext/Polly/blob/main/CHANGELOG.md)
- [Commits](App-vNext/Polly@8.2.0...8.3.1)

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

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

Author: dependabot[bot]

Source/FaceOff/FaceOff.csproj

@@ -17,7 +17,7 @@
         <PackageReference Include="Xam.Plugin.Media" Version="6.0.2" />
         <PackageReference Include="Microsoft.Azure.CognitiveServices.Vision.Face" Version="2.8.0-preview.3" />
         <PackageReference Include="AsyncAwaitBestPractices.MVVM" Version="7.0.0" />
-        <PackageReference Include="Polly" Version="8.2.0" />
+        <PackageReference Include="Polly" Version="8.3.1" />
         <PackageReference Include="Xamarin.CommunityToolkit.Markup" Version="2.0.6" />
     </ItemGroup>
     <ItemGroup>