Bump Polly from 8.4.2 to 8.5.1

Bumps [Polly](https://github.com/App-vNext/Polly) from 8.4.2 to 8.5.1.
- [Release notes](https://github.com/App-vNext/Polly/releases)
- [Changelog](https://github.com/App-vNext/Polly/blob/main/CHANGELOG.md)
- [Commits](App-vNext/Polly@8.4.2...8.5.1)

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

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

Directory.Packages.props

@@ -126,7 +126,7 @@
     <PackageVersion Include="Newtonsoft.Json.Schema" Version="4.0.1" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageVersion Include="NSubstitute" Version="5.3.0" />
-    <PackageVersion Include="Polly" Version="8.4.2" />
+    <PackageVersion Include="Polly" Version="8.5.1" />
     <PackageVersion Include="prometheus-net.AspNetCore" Version="8.2.1" />
     <PackageVersion Include="prometheus-net.DotNetRuntime" Version="4.4.1" />
     <PackageVersion Include="prometheus-net.SystemMetrics" Version="3.1.0" />