(maint) Decrease healthcheck max wait to 5m
(maint) Decrease healthcheck max wait to 5m

 - Based on timings of trhe open source stack under LCOW, this container
   typically starts in about 200s. Give the healthcheck an additional
   100s buffer, allowing it to take up to 5m to be healthy, rather than
   6m

puppetlabs/puppet-server,puppetlabs/puppetserver,puppetlabs/puppetserver,puppetlabs/puppetserver,puppetlabs/puppet-server,puppetlabs/puppetserver,puppetlabs/puppet-server