Add Microsoft Graph token provider with client credentials flow and unit tests #20569

Job	Run time
Run PM4-workflow / Delete Instance	16s
Run PM4-workflow / build-docker-image-EKS	26m 4s
Run PM4-workflow / run-phpunit	55m 43s
Run PM4-workflow / deploy-EKS	0s
Run PM4-workflow / Run Testbench	0s
Run PM4-workflow / Run API Tests	0s
	1h 22m 3s

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