Cannot pack firebase recipes due to missing "composition" key

[mogres]

Description

On the main branch, packing a firebase recipe results in an error. Here are the steps I followed:

Local recipe works as expected

Recipe is available on firebase

Packing the recipe from firebase results in an error

Expected Behavior

The firebase recipe should run similar to the local recipe

[rugeli]

Thank you for reporting this bug! I accidentally deleted the line that calls the path validation function within load_file() in cellpack/autopack/__init__.py. I will make a one-line pr and add it back.

expected behaviors are in this merged pr #230