Add an initial StepAction for ephemeral cluster provisioning #1058

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Status	Duration	Name
✅ Succeeded	21 seconds	fetch-repository
✅ Succeeded	14 seconds	sast-snyk-check
✅ Succeeded	4 minutes	check-task-migration-md
✅ Succeeded	26 seconds	yaml-lint-check
✅ Succeeded	1 minute	ec-task-checks
✅ Succeeded	3 minutes	build-container
✅ Succeeded	2 minutes	build-bundles
✅ Succeeded	2 minutes	check-partner-tasks
✅ Succeeded	16 minutes	e2e-tests
✅ Succeeded	58 seconds	check-task-pipeline-repo-existence
✅ Succeeded	25 seconds	e2e-cleanup