PMM-1771 create pmm-managed db during docker update

supervisord.conf

@@ -115,6 +115,16 @@ stderr_logfile = /var/log/createdb.log
 startretries = 60
 autorestart = unexpected
 
+# support pmm-data containers <1.5.0
+[program:createdb2]
+priority = 8
+# Sleep to wait for mysql to start up.
+command = bash -c 'sleep 5 && mysql -vv -e "CREATE DATABASE IF NOT EXISTS \`pmm-managed\`; GRANT ALL PRIVILEGES ON \`pmm-managed\`.* TO \"pmm-managed\"@localhost IDENTIFIED BY \"pmm-managed\""'
+stdout_logfile = /var/log/createdb2.log
+stderr_logfile = /var/log/createdb2.log
+startretries = 60
+autorestart = unexpected
+
 [program:orchestrator]
 priority = 9
 user = pmm