Bump Polly from 8.5.0 to 8.6.5 (#17)

---
updated-dependencies:
- dependency-name: Polly
  dependency-version: 8.6.5
  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

@@ -21,7 +21,7 @@
     <PackageVersion Include="Azure.Identity" Version="1.17.0" />
 
     <!-- Polly for retry policies -->
-    <PackageVersion Include="Polly" Version="8.5.0" />
+    <PackageVersion Include="Polly" Version="8.6.5" />
 
     <!-- Source Link for debugging -->
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />