NoMissingSubscriptionsCall should look at dependencies

[jfmengels]

NoMissingSubscriptionsCall does not report an error when using the update function of a module from a dependency, when that module also has a subscriptions function that has not been called.

Steps

• Add a test case that uses runWithProjectData and a project that contains such a dependency. That dependency can be made as small as necessary (1 module with only an update and a subscriptions function)
• Add a dependencies visitor https://package.elm-lang.org/packages/jfmengels/elm-review/latest/Review-Rule#withDependenciesProjectVisitor
• Include the modules from dependencies with update+subscriptions in the list of modules to potentially report