mem: Don't use posix_memalign() and friends with custom wrapper. #24

Job	Run time
basic_clang	45s
basic_gcc	42s
check_docs	52s
check_update	1m 17s
check-ansi	33s
minimal	27s
no-deprecated	36s
no-shared-macos (macos-13)	1m 33s
no-shared-ubuntu	42s
self-hosted	0s
no-shared-macos (macos-14)	36s
address_ub_sanitizer	35s
enable_non-default_options	37s
external-test-cf-quiche	1m 18s
external-test-pyca (1.51.0, 3.9)	57s
external-tests	1m 31s
full_featured	44s
fuzz_tests	38s
legacy	33s
memory_sanitizer	53s
no-legacy	38s
non-caching	41s
out-of-readonly-source-and-install-macos (macos-13)	1m 21s
out-of-readonly-source-and-install-ubuntu	38s
threads_sanitizer	48s
out-of-readonly-source-and-install-macos (macos-14)	39s
	20m 34s

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