Detect new cert_allowlist_entry class

[kreeuwijk]

PE 2019.8.3 introduces the puppet_enterprise::pg::cert_allowlist_entry class and deprecates the puppet_enterprise::pg::cert_whitelist_entry class. This PR updates the code in this module to correctly handle that change.

[puppet-community-rangefinder]

puppet_metrics_dashboard::profile::master::postgres_access is a class

that may have no external impact to Forge modules.

This module is declared in 0 of 575 indexed public Puppetfiles.

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These results were generated with Rangefinder, a tool that helps predict the downstream impact of breaking changes to elements used in Puppet modules. You can run this on the command line to get a full report.

Exact matches are those that we can positively identify via namespace and the declaring modules' metadata. Non-namespaced items, such as Puppet 3.x functions, will always be reported as near matches only.