Bump Microsoft.KernelMemory.Abstractions and Microsoft.SemanticKernel…

….Abstractions

Bumps [Microsoft.KernelMemory.Abstractions](https://github.com/microsoft/kernel-memory) and [Microsoft.SemanticKernel.Abstractions](https://github.com/microsoft/semantic-kernel). These dependencies needed to be updated together.

Updates `Microsoft.KernelMemory.Abstractions` from 0.69.240727.1 to 0.71.240820.1
- [Release notes](https://github.com/microsoft/kernel-memory/releases)
- [Commits](microsoft/kernel-memory@packages-0.69.240727.1...packages-0.71.240820.1)

Updates `Microsoft.SemanticKernel.Abstractions` from 1.16.2 to 1.17.1
- [Release notes](https://github.com/microsoft/semantic-kernel/releases)
- [Commits](microsoft/semantic-kernel@dotnet-1.16.2...dotnet-1.17.1)

---
updated-dependencies:
- dependency-name: Microsoft.KernelMemory.Abstractions
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: Microsoft.SemanticKernel.Abstractions
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

LLama.KernelMemory/LLamaSharp.KernelMemory.csproj

@@ -27,7 +27,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.KernelMemory.Abstractions" Version="0.69.240727.1" />
+    <PackageReference Include="Microsoft.KernelMemory.Abstractions" Version="0.71.240820.1" />
   </ItemGroup>
 
   <ItemGroup>