examples(sumo): improve example and guide #5281

Job	Run time
Build docker image	6m 14s
config-e2e	1s
Agent unit tests	1m 29s
CLI unit tests	1m 24s
WebUI unit tests	1m 56s
API Server unit tests	3m 31s
CLI smoke tests (local)	42s
CLI smoke tests (docker)	53s
Test examples (collector)	45s
Tracetesting API Server (NATS)	4m 16s
Test examples (tracetest-jaeger)	59s
Test examples (tracetest-opensearch)	7m 36s
WebUI End-to-end tests (1)	2m 28s
Test examples (tracetest-tempo)	40s
WebUI End-to-end tests (2)	2m 34s
Test examples (tracetest-provisioning-env)	42s
WebUI End-to-end tests (3)	2m 31s
CLI e2e tests (8, 0)	2m 14s
Test examples (tracetest-signoz)	1m 59s
WebUI End-to-end tests (4)	2m 32s
CLI e2e tests (8, 1)	2m 19s
WebUI End-to-end tests (5)	3m 58s
WebUI End-to-end tests (6)	2m 33s
CLI e2e tests (8, 2)	2m 20s
WebUI End-to-end tests (7)	2m 30s
CLI e2e tests (8, 3)	2m 32s
Tracetesting API Server (InMemory)	4m 11s
WebUI End-to-end tests (8)	2m 29s
CLI e2e tests (8, 4)	2m 31s
CLI e2e tests (8, 5)	2m 20s
CLI e2e tests (8, 6)	4m 32s
CLI e2e tests (8, 7)	6m 5s
	1h 23m 46s

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