Added missing in-memory package reference to the appveyor build script

Author: johelvisguzman

appveyor.yml

@@ -45,6 +45,7 @@ build:
 
 after_build:
   - dotnet pack .\src\DotNetToolkit.Repository\DotNetToolkit.Repository.csproj --configuration Release
+  - dotnet pack .\src\DotNetToolkit.Repository.InMemory\DotNetToolkit.Repository.InMemory.csproj --configuration Release
   - dotnet pack .\src\DotNetToolkit.Repository.EntityFramework\DotNetToolkit.Repository.EntityFramework.csproj --configuration Release
   - dotnet pack .\src\DotNetToolkit.Repository.EntityFrameworkCore\DotNetToolkit.Repository.EntityFrameworkCore.csproj --configuration Release