Terraform lint to compare endpoints to charmcraft.yaml

[sed-i]

In addition to fmt and validate we should confirm a 1:1 match between the endpoints output and charmcraft.yaml, to avoid surprise PRs such as canonical/traefik-k8s-operator#497.

observability/.github/workflows/_charm-quality-checks.yaml

Lines 120 to 121 in 200d85b

	linting-terraform:
	name: Validate Terraform files