stdlib dependancy should be updated to 4.25

[blupman]

Affected Puppet, Ruby, OS and module versions/distributions

Puppet: 4.10.10
Ruby: ruby 2.3.3p222
Distribution: debian/stretch
Module version: voxpupuli/puppet-prometheus master branch

How to reproduce (e.g Puppet code you use)

in our Puppetfile we have:

mod 'puppetlabs-stdlib', '4.24.0'

What are you seeing

Error: Evaluation Error: Error while evaluating a Resource Statement, Evaluation Error: Resource type not found: Stdlib::Port at /etc/puppetlabs/code/environments/development/modules/prometheus/manifests/mysqld_exporter.pp:97:3 at /etc/puppetlabs/code/environments/development/site/profile/manifests/prometheus/mysqld_exporter.pp:10 on node dev-local-0.local-dev.tmgcloud.nl

What behaviour did you expect instead

a running mysqld_exporter

Output log

Any additional information you'd like to impart

I have created a small pull request to change this modules dependancies to at least 4.25.0