refs and cleanup

Author: SimonCropp

src/GraphQL.EntityFramework/GraphQL.EntityFramework.csproj

@@ -13,6 +13,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore" />
     <PackageReference Include="Polyfill" PrivateAssets="all" />
     <PackageReference Include="ProjectDefaults" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.Sbom.Targets" PrivateAssets="all" />
     <Using Include="System.Linq.Expressions" />
     <Using Include="GraphQL.Types" />
     <Using Include="Microsoft.EntityFrameworkCore" />