Support WebAssembly target platforms `wasm{32,64}-unknown-unknown` #1049

Job	Run time
lint	20s
external_test (macos-13, latest, true)	12m 38s
abs_paths_test (true)	5m 9s
external_test (macos-13, latest, false)	11m 1s
container_test (archlinux, true)	2m 44s
abs_paths_test (false)	2m 6s
external_test (ubuntu-latest, latest, true)	7m 47s
container_test (archlinux, false)	2m 28s
sys_paths_test (true)	3m 29s
external_test (ubuntu-latest, latest, false)	7m 51s
container_test (debian, true)	4m 2s
sys_paths_test (false)	3m 19s
container_test (debian, false)	2m 44s
test (macos-latest, 7.0.0, true)	3m 0s
xcompile_test (true)	2m 43s
container_test (fedora, true)	3m 3s
test (macos-latest, 7.0.0, false)	2m 15s
xcompile_test (false)	1m 52s
container_test (fedora, false)	2m 52s
test (macos-latest, latest, true)	3m 27s
test (macos-latest, latest, false)	2m 7s
test (ubuntu-latest, 7.0.0, true)	2m 28s
test (ubuntu-latest, 7.0.0, false)	3m 5s
test (ubuntu-latest, latest, true)	2m 48s
test (ubuntu-latest, latest, false)	2m 22s
container_test (suse_leap, true)	4m 41s
container_test (suse_leap, false)	2m 56s
container_test (suse_tumbleweed, true)	3m 20s
container_test (suse_tumbleweed, false)	2m 40s
container_test (ubuntu_20_04, true)	3m 19s
container_test (ubuntu_20_04, false)	2m 52s
container_test (ubuntu_22_04, true)	4m 14s
container_test (ubuntu_22_04, false)	3m 27s
container_test (linux_sysroot, true)	4m 8s
container_test (linux_sysroot, false)	3m 0s
	2h 12m 17s

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