atlasaction: refactor `monitor/schema` #1402

Job	Run time
shim	15s
shim-e2e	7s
golangci-lint	9s
unit-tests	1m 23s
migrate-down	12s
migrate-test	16s
schema-push	23s
schema-test	10s
monitoring	47s
schema-apply (lint-review)	21s
schema-plan	22s
schema-apply (on-the-fly, true)	21s
schema-apply (remote-repo, atlas://atlas-action/plans/20240910183610, atlas://atlas-action?tag=e2e)	10s
schema-plan-approve	0s
schema-apply (local-plan, file://20240910173744.plan.hcl)	15s
schema-apply (multiple-envs, file://20240910173744.plan.hcl)	15s
schema-apply (legacy, v0.27.0, true)	17s
	5m 43s

Provide feedback