feat(sdk): client.get_many — batched multi-kind node fetch #2814

Job	Run time
Detect which file has changed	8s
prepare-environment / prepare	4s
markdown-lint	5s
python-lint	12s
uv-lock-check	0s
yaml-lint	0s
action-lint	0s
validate-generated-documentation	1m 11s
documentation	1m 8s
validate-documentation-style	7s
integration-tests-latest-infrahub	2m 57s
unit-tests (3.14)	2m 33s
unit-tests (3.12)	2m 22s
unit-tests (3.11)	1m 55s
unit-tests (3.13)	2m 42s
unit-tests (3.10)	1m 59s
	17m 23s

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