feat : added wheel testing

pyproject.toml

@@ -39,6 +39,8 @@ write_to = "aidge_backend_cpu/_version.py"
 # CIBUILDWHEEL
 [tool.cibuildwheel]
 build-frontend = "build"
+test-requires = "pytest"
+test-command = "pytest {project}/aidge_backend_cpu/unit_tests"
 # uncomment to run cibuildwheel locally on selected distros
 # build=[
 #     "cp38-manylinux_x86_64",