CLI "Listing parameters" twice

[lionello]

During BYOC AWS deployment, --debug shows:

…
 - Listing parameters with prefix "/Defang/nounly/beta/"
 - Listing parameters with prefix "/Defang/nounly/beta/"
…

Once should be enough?

• First one is in ComposeUp for ValidateProjectConfig to ensure any interpolated vars are in config
• Second one is in FixupServices where we check whether an environment value is actually from config

We should combine these two.