GH-115976: Add WASI to CI

[brettcannon]

• Issue: Add WASI to CI #115976

[sobolevn]

Please, take a look that tests pass but produce this warning:

 z stack-size=524288 -Wl,--stack-first -Wl,--initial-memory=10485760   Modules/_testexternalinspection.o   -o Modules/_testexternalinspection.cpython-313d-wasm32-wasi.so
/bin/sh: 1: z: not found
make: [Makefile:3362: Modules/_testexternalinspection.cpython-313d-wasm32-wasi.so] Error 127 (ignored)
Error:  _testexternalinspection (/home/runner/work/cpython/cpython/cross-build/wasm32-wasi/build/lib.wasi-wasm32-3.13-pydebug/_testexternalinspection.cpython-313d-wasm32-wasi.so) is missing

[hugovk]

build_wasi looks a bit lonely at https://github.com/python/cpython/actions/runs/8208735060?pr=116516 :

I think it requires listing in the needs section:

cpython/.github/workflows/build.yml

Lines 519 to 532 in c951e25

	needs:
	- check_source # Transitive dependency, needed to access `run_tests` value
	- check-docs
	- check_generated_files
	- build_macos
	- build_macos_free_threading
	- build_ubuntu
	- build_ubuntu_free_threading
	- build_ubuntu_ssltests
	- build_windows
	- build_windows_free_threading
	- test_hypothesis
	- build_asan
	- cifuzz

And then in either allowed-failures (if allowed to fail when selected to run) or allowed-skips (if it must pass when selected to run):

cpython/.github/workflows/build.yml

Lines 540 to 580 in c951e25

	allowed-failures: >-
	build_ubuntu_ssltests,
	cifuzz,
	test_hypothesis,
	allowed-skips: >-
	${{
	!fromJSON(needs.check_source.outputs.run-docs)
	&& '
	check-docs,
	'
	|| ''
	}}
	${{
	needs.check_source.outputs.run_tests != 'true'
	&& '
	check_generated_files,
	build_macos,
	build_macos_free_threading,
	build_ubuntu,
	build_ubuntu_free_threading,
	build_ubuntu_ssltests,
	build_windows,
	build_windows_free_threading,
	build_asan,
	'
	|| ''
	}}
	${{
	!fromJSON(needs.check_source.outputs.run_cifuzz)
	&& '
	cifuzz,
	'
	|| ''
	}}
	${{
	!fromJSON(needs.check_source.outputs.run_hypothesis)
	&& '
	test_hypothesis,
	'
	|| ''
	}}

[brettcannon]

Please, take a look that tests pass but produce this warning:

 z stack-size=524288 -Wl,--stack-first -Wl,--initial-memory=10485760   Modules/_testexternalinspection.o   -o Modules/_testexternalinspection.cpython-313d-wasm32-wasi.so
/bin/sh: 1: z: not found
make: [Makefile:3362: Modules/_testexternalinspection.cpython-313d-wasm32-wasi.so] Error 127 (ignored)
Error:  _testexternalinspection (/home/runner/work/cpython/cpython/cross-build/wasm32-wasi/build/lib.wasi-wasm32-3.13-pydebug/_testexternalinspection.cpython-313d-wasm32-wasi.so) is missing

#116229

[brettcannon]

build_wasi looks a bit lonely

Fixed!