Tox 4.0.0 was recently released and it has several breaking changes.
We pin to < 4.0.0 here. We are planning to move forward only on the
master charm branches.
Tox is also pinned to < 4.0.0 for stable branches in upstream
openstack-zuul-jobs as well as in zosci-config. However, the
requires= section in the charm's tox.ini file ends up installing
tox>4, wiping out the zuul-pinned tox<4 that was already installed
installed. This patch fixes that.
* use stable/21.10 libraries
* use zaza/zaza-openstack-tests at stable/21.10
* build.lock files for reactive charms
* bundles refer to ~openstack-charms candidate channel
* update tox/pip.sh to ensure setuptools<50.0.0
The 'hirsute' key in c-h/core/host_factory/ubuntu.py:
UBUNTU_RELEASES had been missed out, and is needed for
hirsute support in many of the charms. This sync is to
add just that key. See also [1]