Time to use build from setuptools instead of distutils?

[abravalheri]

The following feature in setuptools has been deprecated for almost 2 years and is about to be removed:

https://github.com/pypa/setuptools/blob/1ed759173983656734c3606e9c97a348895e5e0c/setuptools/command/build.py#L13-L27

It might be a good idea to import build directly from setuptools for the following code:

models/research/seq_flow_lite/demo/colab/setup.py

Lines 24 to 27 in 1a4a5bf

	class _BuildCommand(build.build):
	sub_commands = [
	('bazel_build', lambda self: True),
	] + build.build.sub_commands

(build is available directly from setuptools, starting on version v62.4.0)