fix: added possibility of utilising namespaces #1768

Job	Run time
api_based_integration_test (partitioners)	4m 22s
embedders_integration_test	3m 38s
api_based_integration_test (chunkers)	6m 39s
setup (3.9)	8s
setup (3.10)	7s
destination_connectors_integration_test	11m 22s
test_dest (3.9)	1m 18s
test_src (3.9)	3m 4s
test_dest (3.10)	2m 53s
test_src_api	41s
test_src (3.10)	6m 39s
source_connectors_integration_test	5m 57s
	46m 48s

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