from_deps.fetches fails unless unique-kinds=false is present #563

If unique_kinds is true (the default), then the from_deps transform generates dependencies like in the form of {kind}: {kind}-{label}. However, it generates fetches in the form of {kind}-{label}: {fetch_info}. This leads to a failure since there's a mismatch between the keys. This is based on the app-services code, which is using taskgraph 8.0, but I believe the issue is also present in 10.0.