Bump Polly from 7.2.4 to 8.2.1 in /Source (#116)

Bumps [Polly](https://github.com/App-vNext/Polly) from 7.2.4 to 8.2.1.
- [Release notes](https://github.com/App-vNext/Polly/releases)
- [Changelog](https://github.com/App-vNext/Polly/blob/main/CHANGELOG.md)
- [Commits](App-vNext/Polly@7.2.4...8.2.1)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Source/DotNetGraphQL.Mobile/DotNetGraphQL.Mobile.csproj

@@ -11,7 +11,7 @@
         <PackageReference Include="Xam.Plugins.Forms.ImageCircle" Version="3.1.1.1-beta" />
         <PackageReference Include="modernhttpclient-updated" Version="3.4.3" />
         <PackageReference Include="GraphQL.Client" Version="6.0.0" />
-        <PackageReference Include="Polly" Version="7.2.4" />
+        <PackageReference Include="Polly" Version="8.2.1" />
         <PackageReference Include="GraphQL.Client.Serializer.Newtonsoft" Version="6.0.0" />
         <PackageReference Include="Xamarin.CommunityToolkit.Markup" Version="2.0.6" />
     </ItemGroup>