Revert "Pin version of setuptools"

This reverts commit 3b782d304ec2073a6406c37b9e1a76c8aecfc9a3.

The blockers for setuptools 8 compatibility should all be resolved
now.

Change-Id: I6d2d63746f98f0f885816395f36022a2706fb9c5
Merge "Revert "Pin version of setuptools""
Revert "Revert "Pin version of setuptools""

This reverts commit b7ebc4765a327e97837f2f6696682859eb77a93d.

We weren't quite ready yet... :/

Change-Id: Idccc4b79a700ca34a80f590e942e1647cdfdefb0
Merge "Revert "Revert "Pin version of setuptools"""