(maint) Merge up f54a9e1 to 5.3.x
(maint) Merge up f54a9e1 to 5.3.x

Generated by CI

* commit 'f54a9e1ca1cf1faaca8deee66c11e057f547142c':
  Version 5.3.10-SNAPSHOT
  Version 5.3.9
  (maint) update puppet submodule version and agent pin

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