🧹🐛 Don't show private resources in the shell auto complete

[slntopp]

apparently private resources are still suggested in cnquery/cnspec shell

For example aws.ecs.instance is marked as private and shouldn't be accessible directly but only via aws.ecs.containerInstances

But here is what we can see:

Same for lots of other resources.

[github-actions]

Test Results

3 073 tests  ±0   3 072 ✅ ±0   1m 34s ⏱️ +11s
  363 suites ±0       1 💤 ±0 
   27 files   ±0       0 ❌ ±0 

Results for commit 61437af. ± Comparison against base commit bc3c52d.