more threads for docker compose acceptance tests (#11431) #4748

Job	Run time
Ensure all required Docker images exist on Dockerhub	10s
Detect Modified Files	5s
Frontend E2E Tests: Start EC2 Runner	1m 26s
Platform: Start Helm Acceptance Test Runner	1m 26s
Platform: Start Build EC2 Runner	1m 25s
Frontend: Start EC2 Runner	1m 20s
Frontend: Build	6m 26s
Frontend: Run End-to-End Tests	17m 30s
Platform: Acceptance Tests (Helm)	9m 32s
Platform: Build	19m 41s
Frontend: Stop Runner	7s
Platform: Stop Helm Acceptance Test EC2 Runner	10s
Frontend E2E Tests: Stop Runner	12s
Notify Slack Channel on Build Failures	6s
Platform: Stop Build EC2 Runner	11s
Notify Slack Channel on Build Fixes	0s
	59m 47s

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