fix: add deprecation node in `--endpoint` for `tracetest start` (#3637) #5653

Job	Run time
API Server unit tests	2m 38s
CLI unit tests	21s
WebUI unit tests	1m 58s
Agent unit tests	37s
Build docker image	6m 17s
config-e2e	1s
Test examples (collector)	41s
Test examples (tracetest-jaeger)	44s
Tracetesting API Server (NATS)	4m 5s
Tracetesting API Server (InMemory)	4m 25s
CLI smoke tests (local)	42s
Test examples (tracetest-opensearch)	7m 33s
CLI smoke tests (docker)	49s
Test examples (tracetest-tempo)	41s
Test examples (tracetest-provisioning-env)	51s
CLI e2e tests (8, 0)	1m 25s
Test examples (tracetest-signoz)	2m 14s
CLI e2e tests (8, 1)	1m 11s
WebUI End-to-end tests (1)	4m 0s
CLI e2e tests (8, 2)	1m 12s
WebUI End-to-end tests (2)	2m 49s
CLI e2e tests (8, 3)	1m 26s
WebUI End-to-end tests (3)	2m 46s
CLI e2e tests (8, 4)	1m 7s
WebUI End-to-end tests (4)	2m 49s
CLI e2e tests (8, 5)	1m 7s
WebUI End-to-end tests (5)	2m 52s
CLI e2e tests (8, 6)	3m 23s
WebUI End-to-end tests (6)	2m 49s
CLI e2e tests (8, 7)	4m 22s
WebUI End-to-end tests (7)	2m 44s
WebUI End-to-end tests (8)	2m 47s
	1h 13m 26s

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