Extend canary_watch_time and update_watch_time

* New MariaDB nodes take considerable time to start.

[#71062154]
Bump src/cf-mysql-broker

Bump cloudfoundry/cf-mysql-broker:
  Hristo Iliev and Leo Rossignac-Milon:
     Create and load the broker schema on Travis ( Travis Success: https://travis-ci.org/cloudfoundry/cf-mysql-broker/builds/26991508 )
     Disable migration checks for mysql broker specs ( Travis finished: https://travis-ci.org/cloudfoundry/cf-mysql-broker/builds/26991251 )
     Added second plan 1gb to MySQL broker ( Travis Failed: https://travis-ci.org/cloudfoundry/cf-mysql-broker/builds/26985100 )
Remove extra start command, log start/stop output to ctl log
Bump src/cf-mysql-broker

Bump cloudfoundry/cf-mysql-broker:
  Nicholas Calugar and Will Pragnell:
     Protecting against SQL Injection ( Travis Success: https://travis-ci.org/cloudfoundry/cf-mysql-broker/builds/27157296 )