Bump Microsoft.Extensions.Caching.Abstractions from 9.0.6 to 9.0.8

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Caching.Abstractions
  dependency-version: 9.0.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cache/src/ThingsLibrary.Cache/ThingsLibrary.Cache.csproj

@@ -20,7 +20,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="9.0.6" />
+		<PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="9.0.8" />
 		<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.6" />
 	</ItemGroup>