Refactor SwitchTenant task #18580

Job	Run time
Run PM4-workflow / build-docker-image-EKS	25m 21s
Run PM4-workflow / Delete Instance	4s
Run PM4-workflow / deploy-EKS	1h 11m 44s
Run PM4-workflow / run-phpunit	1h 11m 45s
Run PM4-workflow / Run API Tests	1s
	2h 48m 55s

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