The puppetdb acceptance tests on PR are failing and have been for quite some time https://jenkins-enterprise.delivery.puppetlabs.net/job/enterprise_puppetdb_integration-system-puppetdb_pr-main/
The issue appears to be related to https://github.com/puppetlabs/puppetdb/pull/3791 a pr which unpinned the hikari library.
Austin Blatt or Rob Browning suggestion was that jenkins needs to build with Java 11. Our docs do seem to indicate Java 11+ here, but project.clj looks to allow 8 here.