Add check blocks to warn if spaces have unexpected apps in them

Issue: https://workshop.cloud.gov/workshop-operations/workshop-terraform-deployment/-/issues/19

Changes

• add check blocks that will output warnings if any space is running unexpected apps

Note

The workers space checks for 0 apps, but that'll be a false warning when:

1. we're checking the ops worker, since it's running the job that runs the check itself
2. we're checking a worker space that has any active jobs running

I wish I could output the workers check as "Info" rather than warning, since those are valid cases, but I think it's useful information anyway.