Add back ILLink usage of dependency analysis framework

[sbomer]

https://github.com/dotnet/runtime/pull/104267 reverted ILLink's usage of the dependency analysis framework because it was causing issues with custom steps:

• https://github.com/dotnet/runtime/issues/103115
• https://github.com/dotnet/runtime/issues/103987

Once https://github.com/dotnet/runtime/issues/104266 is fixed we can try undoing the revert. I suggest doing this early in .NET 10 to avoid unnecessary risk at this point for .NET 9. @vitek-karas @MichalStrehovsky @jtschuster

[dotnet-policy-service[bot]]

Tagging subscribers to this area: @vitek-karas, @agocke, @vsadov See info in area-owners.md if you want to be subscribed.

[dotnet-policy-service[bot]]

Tagging subscribers to this area: @agocke, @sbomer, @vitek-karas See info in area-owners.md if you want to be subscribed.