tests

Correctly handle value generation in sub-attributes #211

Job	Run time
minimum dependency versions	30s
py3.13 unit tests	23s
py3.12 unit tests	27s
py3.10 unit tests	32s
py3.11 unit tests	26s
py3.11 scim2-cli downstream unit tests	17s
py3.12 scim2-cli downstream unit tests	17s
py3.13 scim2-cli downstream unit tests	17s
doc	11s
py unit tests	39s
style	14s
	4m 13s

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