IPA itself is still compatible with Python 3.6, but ipa-builder uses
master upper-constraints which have dropped support for 3.6 and are
pulling importlib-metadata===4.11.4, which requires 3.7.
ERROR: Cannot install ironic-python-agent==8.6.1.dev13 because these package versions have conflicting dependencies.
The conflict is caused by:
ironic-python-agent 8.6.1.dev13 depends on importlib_metadata>=1.7.0
The user requested (constraint) importlib-metadata===4.11.4
Change-Id: I0cc48d0d5ed17400badb081e9117c9351677bb38