fix: improve cardinality many relationship fetch #1136

Job	Run time
Detect which file has changed	4s
prepare-environment / prepare	3s
python-lint	7s
yaml-lint	0s
markdown-lint	0s
action-lint	0s
validate-generated-documentation	45s
validate-documentation-style	6s
unit-tests (3.11)	1m 16s
integration-tests-latest-infrahub	7m 27s
unit-tests (3.9)	1m 12s
unit-tests (3.10)	1m 22s
unit-tests (3.13)	4m 41s
unit-tests (3.12)	1m 38s
documentation	0s
	18m 41s

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