Bump @eslint/js from 9.9.0 to 9.12.0 #1813

Job	Run time
Check conditional workflows and jobs	7s
Admin Client	48s
Build Keycloak	7m 50s
Admin UI	1m 48s
Account UI	1m 4s
Generate Test Seed	1s
Keycloak JS	47s
UI Shared	56s
Account UI E2E	2m 50s
Admin UI E2E (1, chrome)	14m 8s
Admin UI E2E (2, chrome)	8m 8s
Admin UI E2E (3, chrome)	9m 25s
Admin UI E2E (4, chrome)	4m 25s
Admin UI E2E (5, chrome)	6m 10s
Status Check - Keycloak JavaScript CI	8s
	58m 35s

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