gitlab: prefix outputs with action's name #1341

Job	Run time
migrate-test	11s
migrate-down	13s
golangci-lint	8s
monitoring	32s
schema-apply (lint-review)	14s
schema-plan	7s
schema-plan-approve	0s
schema-apply (on-the-fly, true)	15s
schema-apply (remote-repo, atlas://atlas-action/plans/20240910183610, atlas://atlas-action?tag=e2e)	14s
schema-push	17s
schema-test	15s
schema-apply (local-plan, file://20240910173744.plan.hcl)	8s
shim	16s
schema-apply (multiple-envs, file://20240910173744.plan.hcl)	19s
schema-apply (legacy, v0.27.0, true)	9s
shim-e2e	5s
unit-tests	1m 15s
	4m 38s

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