Support WebAssembly target platforms `wasm{32,64}-unknown-unknown` #1050

Job	Run time
lint	14s
abs_paths_test (true)	5m 7s
container_test (archlinux, true)	2m 51s
abs_paths_test (false)	2m 4s
external_test (macos-13, latest, true)	12m 2s
container_test (archlinux, false)	2m 27s
sys_paths_test (true)	4m 41s
external_test (macos-13, latest, false)	11m 3s
container_test (debian, true)	3m 9s
sys_paths_test (false)	3m 20s
external_test (ubuntu-latest, latest, true)	7m 47s
container_test (debian, false)	2m 36s
test (macos-latest, 7.0.0, true)	3m 28s
external_test (ubuntu-latest, latest, false)	7m 52s
container_test (fedora, true)	3m 7s
test (macos-latest, 7.0.0, false)	2m 4s
xcompile_test (true)	2m 56s
container_test (fedora, false)	2m 40s
test (macos-latest, latest, true)	3m 54s
xcompile_test (false)	2m 14s
container_test (suse_leap, true)	3m 45s
test (macos-latest, latest, false)	2m 10s
container_test (suse_leap, false)	3m 7s
test (ubuntu-latest, 7.0.0, true)	2m 21s
container_test (suse_tumbleweed, true)	4m 36s
test (ubuntu-latest, 7.0.0, false)	2m 25s
container_test (suse_tumbleweed, false)	2m 50s
test (ubuntu-latest, latest, true)	2m 50s
container_test (ubuntu_20_04, true)	3m 3s
test (ubuntu-latest, latest, false)	2m 25s
container_test (ubuntu_20_04, false)	2m 50s
container_test (ubuntu_22_04, true)	2m 55s
container_test (ubuntu_22_04, false)	2m 36s
container_test (linux_sysroot, true)	3m 54s
container_test (linux_sysroot, false)	2m 28s
	2h 9m 51s

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