Add bugfix with tests for `find_resource` #436

Job	Run time
unit_tests (3.7)	1m 4s
unit_tests (3.8)	1m 11s
unit_tests (3.9)	1m 13s
unit_tests (3.10)	1m 12s
unit_tests (3.11)	1m 9s
py_build_tests / relative_path_tests	6s
py_build_tests / py_build_tests	12s
	6m 7s

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