fixed `lookup_test.py::test_addon_lookup_relative_noext_trailing_notf… #19432

Job	Run time
build_cmake (ubuntu:24.04, true, true)	2m 54s
build_make (ubuntu:25.10)	5m 27s
build_make (ubuntu:24.04)	4m 4s
build_cmake (alpine:3.23, false, false)	3m 55s
build_make (alpine:3.23)	6m 4s
build_cmake (ubuntu:25.10, true, true)	2m 57s
	25m 21s

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