Bump Polly from 7.2.4 to 8.0.0

Bumps [Polly](https://github.com/App-vNext/Polly) from 7.2.4 to 8.0.0.
- [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...8.0.0)

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

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

PointerStar/Shared/PointerStar.Shared.csproj

@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.SignalR.Client" Version="7.0.11" />
-    <PackageReference Include="Polly" Version="7.2.4" />
+    <PackageReference Include="Polly" Version="8.0.0" />
   </ItemGroup>
 
   <ItemGroup>