chore: update otel demo examples #6520

Job	Run time
Agent unit tests	1m 40s
CLI unit tests	28s
API Server unit tests	2m 50s
WebUI unit tests	1m 55s
Build docker image	5m 42s
config-e2e	1s
Test examples (collector)	40s
Test examples (tracetest-jaeger)	42s
Tracetesting API Server (InMemory)	3m 50s
CLI e2e tests (8, 0)	1m 13s
Test examples (tracetest-opensearch)	7m 30s
CLI smoke tests (local)	41s
CLI e2e tests (8, 1)	1m 20s
Test examples (tracetest-tempo)	45s
CLI smoke tests (docker)	41s
CLI e2e tests (8, 2)	1m 21s
Tracetesting API Server (NATS)	3m 54s
Test examples (tracetest-provisioning-env)	38s
CLI e2e tests (8, 3)	1m 22s
CLI e2e tests (8, 4)	1m 21s
CLI e2e tests (8, 5)	2m 33s
WebUI End-to-end tests (1)	2m 34s
CLI e2e tests (8, 6)	1m 26s
WebUI End-to-end tests (2)	2m 34s
CLI e2e tests (8, 7)	3m 31s
WebUI End-to-end tests (3)	3m 36s
WebUI End-to-end tests (4)	2m 36s
WebUI End-to-end tests (5)	2m 38s
WebUI End-to-end tests (6)	2m 38s
WebUI End-to-end tests (7)	2m 35s
WebUI End-to-end tests (8)	2m 37s
	1h 7m 52s

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