Comment 2 for bug 2004022

Reviewed: https://review.opendev.org/c/openstack/rally/+/872021
Committed: https://opendev.org/openstack/rally/commit/14d449b2f1bc51416053d1e6bdd1a5cd915e527a
Submitter: "Zuul (22348)"
Branch: master

commit 14d449b2f1bc51416053d1e6bdd1a5cd915e527a
Author: yatinkarel <email address hidden>
Date: Fri Jan 27 19:52:08 2023 +0530

    Pin SQLAlchemy to <2.0.0

    Rally code is not compatible with SQLAlchemy-2.0.0,
    until it's compatible let's pin it.

    CI jobs are broken with multiple errors, so to get
    this in also need following fixes:-
    - Remove python-dev from bindep to fix announce-release
      and docs jobs
    - Update upper-constraints for testtools to 2.5.0 to fix
      issues with python3.10+
    - Update tox.ini for tox4 compatibility
    - Ignore warnings introdueced with oslo.db-12.1.0,
      SQLAlchemy-1.4.46
    - Make tox-cover job non-voting as to get it passing
      coverage report need to succeed for previous commit,
      which will not succeed without the required changes
      in this patch. It will be made voting again in follow
      up patch.

    Related-Bug: #2004022
    Change-Id: Ifcffd11e300e1485fdbfa54b23bcdcaa6ad61011