The pack validation in Settings -> Storage -> Behavior Packs shows that it is missing a dependency, it also says that twice for some reason. I know that it is not missing a dependency because when I create a new world and add the pack, it also adds the dependency like it's supposed to.

Steps to Reproduce:

1. Download the Chevrolet addon example below.
2. Install the addon
3. Head to the Settings -> Storage section
4. Note the yellow bang on Behaviour Packs
5. Expand behaviour packs and note the error.

As mentioned in the comments, to test if the pack is set correctly as a dependency you can create a new world and add the behaviour pack. Note that the resource pack is added automatically.