Closes #31311. Supply databases with Testcontainers. #199

Job	Run time
Check conditional workflows and jobs	6s
Keycloak JS	37s
Build Keycloak	7m 2s
Generate Test Seed	1s
UI Shared	1m 3s
Admin UI	1m 41s
Admin Client	57s
Account UI	1m 4s
Account UI E2E	3m 9s
Admin UI E2E (1, chrome)	9m 44s
Admin UI E2E (2, chrome)	5m 26s
Admin UI E2E (3, chrome)	6m 9s
Admin UI E2E (4, chrome)	10m 12s
Admin UI E2E (5, chrome)	9m 31s
Status Check - Keycloak JavaScript CI	6s
	56m 48s

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