Bump Polly.Core from 8.5.2 to 8.6.4 (#1080)

---
updated-dependencies:
- dependency-name: Polly.Core
  dependency-version: 8.6.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -12,7 +12,7 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
     <PackageVersion Include="Newtonsoft.Json.Schema" Version="4.0.1" />
     <PackageVersion Include="NSubstitute" Version="5.3.0" />
-    <PackageVersion Include="Polly.Core" Version="8.5.2" />
+    <PackageVersion Include="Polly.Core" Version="8.6.4" />
     <PackageVersion Include="Refit" Version="8.0.0" />
     <PackageVersion Include="ReportGenerator" Version="5.4.18" />
     <PackageVersion Include="Shouldly" Version="4.3.0" />