Supported database health check fails when Jira 8.13.12 is being run with PostgreSQL 12

Issue Summary

Jira 8.13.12 officially supports PostgreSQL 12 but ATST health check fails with a following warning:
PostgreSQL 12 is not supported. You should migrate to a supported database version.

Steps to Reproduce

• run Jira 8.13.12 with PostgreSQL 12 as a database
• login as an admin
• navigate to system -> Troubleshooting and support tools

Expected Results

Supported database health check is green

Actual Results

ATST produces a warning about unsupported database

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available