chore: Bump Polly from 8.4.2 to 8.6.4

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

RedHatDataGrid/Volo.Abp.Caching.RedHatDataGrid.csproj

@@ -48,7 +48,7 @@
 
     <!-- HTTP and Resilience -->
     <PackageReference Include="Microsoft.Extensions.Http.Polly" Version="8.0.*" />
-    <PackageReference Include="Polly" Version="8.4.*" />
+    <PackageReference Include="Polly" Version="8.6.4" />
 
     <!-- Health Checks -->
     <PackageReference Include="Microsoft.Extensions.Diagnostics.HealthChecks" Version="8.0.*" />