Bump Polly from 8.5.0 to 8.5.1 in /ImperatorToCK3

Bumps [Polly](https://github.com/App-vNext/Polly) from 8.5.0 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@8.5.0...8.5.1)

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

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

ImperatorToCK3/ImperatorToCK3.csproj

@@ -44,7 +44,7 @@
         </PackageReference>
         <PackageReference Include="PGCG.commonItems" Version="15.1.3" />
         <PackageReference Include="PGCG.commonItems.SourceGenerators" Version="1.0.7"/>
-        <PackageReference Include="Polly" Version="8.5.0" />
+        <PackageReference Include="Polly" Version="8.5.1" />
         <PackageReference Include="Roslynator.Analyzers" Version="4.12.10">
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>