tests: Disable pytest-timeout for Pyodide (no signal.setitimer)

Pyodide runs in a WebAssembly sandbox without POSIX signals, so
`signal.setitimer` is not available. This causes pytest-timeout to
crash with `AttributeError: module 'signal' has no attribute 'setitimer'`
when timeout > 0.

Override the test-command for Pyodide to keep timeout=0 (disabled).

Author: rwgk

tests/pyproject.toml

@@ -28,6 +28,8 @@ PYBIND11_FINDPYTHON = true
 [tool.cibuildwheel]
 test-sources = ["tests", "pyproject.toml"]
 test-command = "python -m pytest -v -o timeout=120 -p no:cacheprovider tests"
+# Pyodide doesn't have signal.setitimer, so pytest-timeout can't work with timeout > 0
+pyodide.test-command = "python -m pytest -v -o timeout=0 -p no:cacheprovider tests"
 environment.PIP_ONLY_BINARY = "numpy"
 environment.PIP_PREFER_BINARY = "1"