Update dependency puppetlabs/postgresql to v10.4.0

Author: renovate[bot]

Puppetfile

@@ -67,7 +67,7 @@ mod 'puppetlabs/mailalias_core', '1.2.0'
 mod 'puppetlabs/mount_core', '1.3.0'
 mod 'puppetlabs/mysql', '16.2.0'
 mod 'puppetlabs/ntp', '10.1.0'
-mod 'puppetlabs/postgresql', '10.3.0'
+mod 'puppetlabs/postgresql', '10.4.0'
 mod 'puppetlabs/puppet_agent', '4.21.0'
 mod 'puppetlabs/puppetdb', '8.1.0'
 mod 'puppetlabs/puppetserver_gem', '1.1.1'