Play Framework

Let Hibernate auto-detect dialect instead of explicit mapping

Only set hibernate.dialect when the user explicitly configures jpa.dialect
or a known driver is detected. For unrecognized drivers, let Hibernate 7.x
auto-detect the dialect from the JDBC connection. Also bumps version to 1.11.6.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>