Bump the all-dependencies group with 1 update (#555)

Bumps Polly.Core from 8.6.3 to 8.6.4

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

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

@@ -17,7 +17,7 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageVersion Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.21.2" />
     <PackageVersion Include="Moq" Version="4.20.72" />
-    <PackageVersion Include="Polly.Core" Version="8.6.3" />
+    <PackageVersion Include="Polly.Core" Version="8.6.4" />
     <PackageVersion Include="Testcontainers.K3s" Version="4.7.0" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.4" />
     <PackageVersion Include="xunit.v3" Version="3.0.1" />