tests

fix: a few typing issues #387

Job	Run time
py unit tests	12s
minimum dependency versions	10s
py3.13 unit tests	9s
py3.11 unit tests	11s
py3.10 unit tests	13s
doc	13s
py3.9 unit tests	12s
py3.12 unit tests	13s
style	11s
py3.13 scim2-server downstream unit tests	17s
py3.13 scim2-tester downstream unit tests	11s
py3.13 scim2-client downstream unit tests	17s
py3.11 scim2-server downstream unit tests	19s
py3.13 scim2-cli downstream unit tests	15s
py3.12 scim2-cli downstream unit tests	16s
py3.12 scim2-tester downstream unit tests	11s
py3.11 scim2-client downstream unit tests	17s
py3.12 scim2-client downstream unit tests	13s
py3.12 scim2-server downstream unit tests	17s
py3.11 scim2-tester downstream unit tests	13s
py3.11 scim2-cli downstream unit tests	21s
	4m 51s

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