Draft: Graphql/ResourceNotAvailable: Autocorrect all offenses

What does this MR do and why?

Also, regenerate its TODOS and leave this cop in "grace period".

We added this 👮 in !120746 (merged).

Autocorrected via:

bundle exec rubocop --parallel --autocorrect --only Graphql/ResourceNotAvailableError app/graphql ee/app/graphql

How to set up and validate locally

bundle exec rubocop --parallel --only RSpec/FactoryBot/LocalStaticAssignment

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.