Use a global SSE channel #6129

Job	Run time
Set application version and env profile	6s
Run frontend unit tests	2m 26s
Run backend unit tests	3m 15s
Build and package	5m 34s
Run E2E tests (1)	6m 9s
Run E2E tests (2)	4m 44s
Run E2E tests (3)	3m 45s
Run E2E tests (4)	4m 5s
Run E2E tests (5)	4m 10s
Run E2E tests (6)	3m 54s
Run E2E tests (7)	3m 52s
Run E2E tests (8)	3m 49s
Run E2E tests (9)	3m 39s
Run E2E tests (10)	6m 5s
Run E2E tests (11)	6m 5s
Run E2E tests (12)	6m 11s
Run E2E tests (13)	6m 10s
Run E2E tests (14)	5m 32s
Run E2E tests (15)	4m 59s
Run E2E tests (16)	4m 48s
Push to registry	0s
	1h 29m 18s

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