feat: add rule for uninitialised apollo query properties

We've found that some Vue 3 spec failures have been due to Vue Apollo query properties not being initialised in component data.

See gitlab-org/gitlab!163604 (merged) for an example where ensuring a sensible inital value fixes Vue 3 specs.

Closes Add rule for ensuring VueApollo queries have in... (#74 - closed). See also gitlab-org&14950.