Bump Microsoft.EntityFrameworkCore.InMemory from 8.0.6 to 8.0.8 in /src

Bumps [Microsoft.EntityFrameworkCore.InMemory](https://github.com/dotnet/efcore) from 8.0.6 to 8.0.8.
- [Release notes](https://github.com/dotnet/efcore/releases)
- [Commits](dotnet/efcore@v8.0.6...v8.0.8)

---
updated-dependencies:
- dependency-name: Microsoft.EntityFrameworkCore.InMemory
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

src/IoTHub.Portal.Infrastructure/IoTHub.Portal.Infrastructure.csproj

@@ -124,7 +124,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="8.0.6" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="8.0.8" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="8.0.2" />
     <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Diagnostics.HealthChecks.EntityFrameworkCore" Version="8.0.6" />