netron-cli: fix build and update

Upstream moved from Makefile to npm scripts [1]. Here I switch to lower
level commands, which are copied from Makefile, to avoid npm dependency.

[1] 63d727e5d3

.SRCINFO

@@ -1,6 +1,6 @@
 pkgbase = netron-cli
 	pkgdesc = Visualizer for neural network, deep learning, and machine learning models (CLI only)
-	pkgver = 6.6.2
+	pkgver = 6.6.8
 	pkgrel = 1
 	url = https://netron.app/
 	arch = any
@@ -12,7 +12,7 @@ pkgbase = netron-cli
 	depends = python
 	optdepends = python-onnx: serializing ONNX models
 	optdepends = python-pytorch: serializing PyTorch models
-	source = https://github.com/lutzroeder/netron/archive/v6.6.2/netron-6.6.2.tar.gz
-	sha256sums = d17e4369e0a84fa321e4dcfc09d35aaa1185a55184e5a0b1ca566ee919798ee9
+	source = https://github.com/lutzroeder/netron/archive/v6.6.8/netron-6.6.8.tar.gz
+	sha256sums = 18800221e93c060c64a923fcdaac1c347510cc2ec3e29b3ee513e6941bf06ff1
 
 pkgname = netron-cli

PKGBUILD

@@ -1,7 +1,7 @@
 # Maintainer: Chih-Hsuan Yen <yan12125@archlinux.org>
 
 pkgname=netron-cli
-pkgver=6.6.2
+pkgver=6.6.8
 pkgrel=1
 pkgdesc='Visualizer for neural network, deep learning, and machine learning models (CLI only)'
 url='https://netron.app/'
@@ -14,19 +14,12 @@ optdepends=(
   'python-pytorch: serializing PyTorch models'
 )
 source=(https://github.com/lutzroeder/netron/archive/v$pkgver/netron-$pkgver.tar.gz)
-sha256sums=('d17e4369e0a84fa321e4dcfc09d35aaa1185a55184e5a0b1ca566ee919798ee9')
-
-prepare() {
-  cd netron-$pkgver
-  # Use dependencies from Arch
-  sed -i '/python -m pip/d' Makefile
-  # We don't need node_modules...trick Makefile
-  mkdir node_modules
-}
+sha256sums=('18800221e93c060c64a923fcdaac1c347510cc2ec3e29b3ee513e6941bf06ff1')
 
 build() {
   cd netron-$pkgver
-  make build_python
+  python package.py build version
+  python -m build --wheel --no-isolation --outdir dist/pypi dist/pypi
 }
 
 package() {