fix: use-after-free in cabi_realloc free_list on repeated export calls #996

Job	Run time
lint	54s
build-splicer (24.10.0, stable, macos-latest)	1m 55s
build-splicer (24.10.0, stable, windows-latest)	4m 16s
build-splicer (24.10.0, stable, ubuntu-latest)	2m 1s
build (24.10.0, stable, ubuntu-latest, release)	10m 53s
build (24.10.0, stable, ubuntu-latest, debug)	10m 42s
test-example (24.10.0, ubuntu-latest)	3m 48s
test (24.10.0, macos-latest, release)	6m 37s
test (24.10.0, ubuntu-latest, debug)	9m 19s
test (latest, ubuntu-latest, debug)	9m 3s
test (24.10.0, windows-latest, release)	10m 5s
test (latest, windows-latest, release)	9m 52s
test (latest, macos-latest, release)	6m 49s
test (latest, macos-latest, debug)	7m 5s
test (24.10.0, ubuntu-latest, release)	8m 31s
test (24.10.0, macos-latest, debug)	10m 8s
test (latest, windows-latest, debug)	10m 36s
test (latest, ubuntu-latest, release)	8m 45s
test (24.10.0, windows-latest, debug)	10m 49s
	2h 22m 8s

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