docs+examples(get started): add trace ingestion examples for nodejs, python, go #6620

Job	Run time
Agent unit tests	1m 20s
CLI unit tests	36s
API Server unit tests	2m 54s
WebUI unit tests	1m 54s
Build docker image	5m 52s
config-e2e	1s
Test examples (collector)	44s
CLI smoke tests (local)	46s
Test examples (tracetest-jaeger)	40s
CLI smoke tests (docker)	45s
CLI e2e tests (8, 0)	1m 21s
Test examples (tracetest-opensearch)	7m 24s
WebUI End-to-end tests (1)	2m 37s
CLI e2e tests (8, 1)	1m 30s
WebUI End-to-end tests (2)	2m 34s
Test examples (tracetest-tempo)	39s
CLI e2e tests (8, 2)	1m 22s
WebUI End-to-end tests (3)	2m 35s
Tracetesting API Server (InMemory)	3m 52s
CLI e2e tests (8, 3)	1m 27s
Test examples (tracetest-provisioning-env)	45s
WebUI End-to-end tests (4)	3m 32s
CLI e2e tests (8, 4)	1m 25s
WebUI End-to-end tests (5)	2m 34s
CLI e2e tests (8, 5)	2m 33s
WebUI End-to-end tests (6)	2m 43s
Tracetesting API Server (NATS)	3m 51s
CLI e2e tests (8, 6)	1m 24s
WebUI End-to-end tests (7)	2m 33s
CLI e2e tests (8, 7)	3m 32s
WebUI End-to-end tests (8)	2m 33s
	1h 8m 18s

Provide feedback