Supply databases with Testcontainers. #202

Job	Run time
Check conditional workflows and jobs	4s
UI Shared	55s
Admin Client	46s
Keycloak JS	38s
Build Keycloak	3m 54s
Account UI	1m 4s
Admin UI	1m 41s
Generate Test Seed	1s
Account UI E2E	2m 45s
Admin UI E2E (1, chrome)	9m 10s
Admin UI E2E (2, chrome)	10m 0s
Admin UI E2E (3, chrome)	6m 2s
Admin UI E2E (4, chrome)	6m 45s
Admin UI E2E (5, chrome)	8m 22s
Status Check - Keycloak JavaScript CI	5s
	52m 12s

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