gateway: fix Pulsar topics with non default tenant #2656

Job	Run time
CLI End to End tests	8m 32s
End to End tests (Python, python)	11m 43s
Unit tests (Runtime)	8m 53s
End to End tests (Other, other)	16m 9s
Unit tests (Runtime IT)	20m 37s
Unit tests (Deployer)	9m 26s
Unit tests (Api Gateway)	8m 39s
Unit tests (Control plane)	7m 50s
Unit tests (Other)	14m 57s
Unit tests (Style)	7m 19s
	1h 54m 5s

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