integrate highlevel fuse lib mfusepy #5351

Job	Run time
security	13s
lint	9s
asan_ubsan	6m 14s
native_tests (ubuntu-22.04, 3.10, py310-llfuse)	11m 40s
vm_tests (haiku, r1beta5, Haiku, false)	12m 3s
native_tests (ubuntu-22.04, 3.10, mypy)	3m 13s
vm_tests (freebsd, 14.3, FreeBSD, true, borg-freebsd-14-x86_64-gh)	21m 57s
native_tests (ubuntu-22.04, 3.11, docs)	3m 2s
vm_tests (openbsd, 7.7, OpenBSD, false)	24m 19s
vm_tests (netbsd, 10.1, NetBSD, false)	14m 13s
native_tests (ubuntu-24.04, 3.14, py314-mfusepy)	11m 50s
windows_tests	-1s
	1h 48m 52s

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