A new release has been created: https://gerrit.wikimedia.org/g/operations/software/wmfmariadbpy/+/refs/tags/v0.7
The packages are built, and uploaded to apt.wm.o.
This release needs to be coordinated with a puppet change: https://gerrit.wikimedia.org/r/c/operations/puppet/+/665324
 Disable puppet on all db primaries: `sudo cumin A:db-role-master 'disable-puppet "Deploying wmfmariadbpy 0.7 - kormat - T283228"
 Merge puppet CR
 Upgrade wmfmariadbpy packages on db2142 (x2 primary in codfw)
 Run puppet manually (puppet will not start the systemd service for pt-heartbeat itself, by design, so this should be safe)
 `pkill -f pt-heartbeat-wikimedia && systemctl start pt-heartbeat-wikimedia`
 Check the heartbeat table to ensure that writes are happening.
 Check that `sudo -u nagios db-check-health` succeeds.
 Upgrade wmfmariadbpy packages on cumin2001
 Check that mysql.py and db-replication-tree work correctly.