Release 2972

Trello card

https://trello.com/c/kPYzi2gv/678-se-delete-aks-review-app-workflow

Context

added the destroy function so that review apps are destroyed after closing PR

Changes proposed in this pull request

added destroy_aks.yml

Guidance to review

make ci review_aks terraform-destroy-aks PR_NUMBER=${{github.event.number}}