Bump Polly from 7.2.4 to 8.1.0 (#59)

Bumps [Polly](https://github.com/App-vNext/Polly) from 7.2.4 to 8.1.0.
- [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...8.1.0)

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

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

SimpleXamarinGraphQL.Android/SimpleXamarinGraphQL.Android.csproj

@@ -62,7 +62,7 @@
     <ItemGroup>
         <PackageReference Include="Xamarin.Forms" Version="5.0.0.2622" />
         <PackageReference Include="GraphQL.Client" Version="6.0.0" />
-        <PackageReference Include="Polly" Version="7.2.4" />
+        <PackageReference Include="Polly" Version="8.1.0" />
         <PackageReference Include="modernhttpclient-updated" Version="3.4.3" />
         <PackageReference Include="Xamarin.Essentials" Version="1.8.0" />
         <PackageReference Include="GraphQL.Client.Serializer.Newtonsoft" Version="6.0.0" />

SimpleXamarinGraphQL.iOS/SimpleXamarinGraphQL.iOS.csproj

@@ -124,7 +124,7 @@
     <ItemGroup>
         <PackageReference Include="Xamarin.Forms" Version="5.0.0.2622" />
         <PackageReference Include="GraphQL.Client" Version="6.0.0" />
-        <PackageReference Include="Polly" Version="7.2.4" />
+        <PackageReference Include="Polly" Version="8.1.0" />
         <PackageReference Include="modernhttpclient-updated" Version="3.4.3" />
         <PackageReference Include="Xamarin.Essentials" Version="1.8.0" />
         <PackageReference Include="GraphQL.Client.Serializer.Newtonsoft" Version="6.0.0" />

SimpleXamarinGraphQL/SimpleXamarinGraphQL.csproj

@@ -12,7 +12,7 @@
         <PackageReference Include="Xamarin.Forms" Version="5.0.0.2622" />
         <PackageReference Include="GraphQL.Client" Version="6.0.0" />
         <PackageReference Include="AsyncAwaitBestPractices.MVVM" Version="6.0.6" />
-        <PackageReference Include="Polly" Version="7.2.4" />
+        <PackageReference Include="Polly" Version="8.1.0" />
         <PackageReference Include="modernhttpclient-updated" Version="3.4.3" />
         <PackageReference Include="Xamarin.Essentials" Version="1.8.0" />
         <PackageReference Include="GraphQL.Client.Serializer.Newtonsoft" Version="6.0.0" />