Bump Microsoft.Extensions.Caching.Memory from 9.0.2 to 9.0.6

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Caching.Memory
  dependency-version: 9.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

BitFaster.Caching.Benchmarks/BitFaster.Caching.Benchmarks.csproj

@@ -26,7 +26,7 @@
     <PackageReference Include="BenchmarkDotNet" Version="0.14.0" />
     <PackageReference Include="BenchmarkDotNet.Diagnostics.Windows" Version="0.14.0" />
     <PackageReference Include="MathNet.Numerics" Version="5.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="9.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="9.0.6" />
     <PackageReference Include="System.Runtime.Caching" Version="8.0.1" />
   </ItemGroup>