add ember-cli-babel 8 to version check

[NullVoxPopuli]

WARNING: ember-compatibility-helpers: You are using an unsupported ember-cli-babel version, compatibility helper tranforms will not be included automatically
WARNING: ember-cli-typescript requires ember-cli-babel ^7.7.3, but you have version 8.0.0 installed; your TypeScript files may not be transpiled correctly.
WARNING: ember-compatibility-helpers: You are using an unsupported ember-cli-babel version, compatibility helper tranforms will not be included automatically
WARNING: ember-compatibility-helpers: You are using an unsupported ember-cli-babel version, compatibility helper tranforms will not be included automatically
WARNING: ember-compatibility-helpers: You are using an unsupported ember-cli-babel version, compatibility helper tranforms will not be included automatically
WARNING: ember-cli-typescript requires ember-cli-babel ^7.7.3, but you have version 8.0.0 installed; your TypeScript files may not be transpiled correctly.
WARNING: ember-compatibility-helpers: You are using an unsupported ember-cli-babel version, compatibility helper tranforms will not be included automatically
WARNING: ember-compatibility-helpers: You are using an unsupported ember-cli-babel version, compatibility helper tranforms will not be included automatically
WARNING: ember-cli-typescript requires ember-cli-babel ^7.1.0, but you have version 8.0.0 installed; your TypeScript files may not be transpiled correctly.

[lukasnys]

Is there a reason why we don't have a command in this scenario but we do for the others?

[NullVoxPopuli]

Ember test is the default, afaik

[kategengler]

Thank you!