Change to a PEP 517 based workflow

PKGBUILD

@@ -28,7 +28,7 @@ b2sums=('2159d40c0879a15a9ae2ad9604436dd8d24afa0d431b621c3ae1c63b26c216395401a97
 
 build() {
   cd ${_pkgname}-${pkgver}
-  python setup.py build
+  python -m build --wheel --no-isolation
 }
 
 check() {
@@ -38,7 +38,7 @@ check() {
 
 package() {
   cd ${_pkgname}-${pkgver}
-  python setup.py install --skip-build -O1 --root="${pkgdir}"
+  python -m installer --destdir="$pkgdir" dist/*.whl
   install -Dm644 LICENSE -t "${pkgdir}/usr/share/licenses/${pkgname}"
 }