[BUG] (minor) .pyc files present in recent setuptools releases sdists

setuptools version

63.2.0

Python version

n/a

OS

Gentoo Linux

Additional environment information

No response

Description

Not a big deal but just noticed that there are some .pyc files found in the tools/ directory of the generated sdist:

$ tar -tf /tmp/dist/setuptools-63.2.0.tar.gz  | grep __pycache__
setuptools-63.2.0/tools/__pycache__/
setuptools-63.2.0/tools/__pycache__/finalize.cpython-310.pyc
setuptools-63.2.0/tools/__pycache__/generate_validation_code.cpython-310.pyc
setuptools-63.2.0/tools/__pycache__/ppc64le-patch.cpython-310.pyc
setuptools-63.2.0/tools/__pycache__/vendored.cpython-310.pyc

Expected behavior

No .pyc files there ;-).

How to Reproduce

wget https://files.pythonhosted.org/packages/0a/ba/52611dc8278828eb9ec339e6914a0f865f9e2af967214905927835dfac0a/setuptools-63.2.0.tar.gz
tar -tf setuptools-63.2.0.tar.gz | grep __pycache__

Output

$ tar -tf setuptools-63.2.0.tar.gz | grep __pycache__
setuptools-63.2.0/tools/__pycache__/
setuptools-63.2.0/tools/__pycache__/finalize.cpython-310.pyc
setuptools-63.2.0/tools/__pycache__/generate_validation_code.cpython-310.pyc
setuptools-63.2.0/tools/__pycache__/ppc64le-patch.cpython-310.pyc
setuptools-63.2.0/tools/__pycache__/vendored.cpython-310.pyc

Reproduce the issue with the provided wget and tar commands, then inspect how the tools/ directory is collected into the generated source distribution. Confirm the fix by rebuilding or examining a setuptools source archive and verifying that it contains no tools/pycache or .pyc files.