Fix telemetry/test_events.py for v6 topos#21649

StormLiangMS merged 3 commits intosonic-net:mastersonic-net/sonic-mgmt:masterfrom

markx-arista:master-fix-telemetry-test-events-v6-topomarkx-arista/sonic-mgmt:master-fix-telemetry-test-events-v6-topoCopy head branch name to clipboard