MINIFICPP-2514 Fix Python libloader #5826

Job	Run time
macos-xcode	36m 29s
windows-2022	45m 39s
ubuntu-24.04	7m 24s
Docker build for integration tests	34m 50s
rocky	13m 50s
ubuntu-22.04-clang	14m 46s
Docker integration tests	26m 0s
	2h 58m 58s

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