If a release branch has already been cut, rebuild the package promotion job with the release branch set instead of main or 2019.8.x.
Checkout the branch you promoted to (either the automatic branch like 2019.8.x or the release branch like 2019.8.1-release) of enterprise-dist locally and verify that all platforms have the same tagged version of pe-puppetdb using the below rake command.
bundle exec rake report:packages
If there were any important dependency bumps, such as to fix a bug or CVE, verify that they were updated by navigating to the release and then to the pe-puppetdb package on [pebuildinfo|pebuildinfo.slice.puppetlabs.net/].