Drop explicit host ports Compose will automatically allocate unassigned ports. These can be looked up e.g. using `docker compose port'. Enables using several "instances" of the application with different project names (`docker compose -p <project name>').

<?xml version="1.0" encoding="UTF-8" ?>
<datacage>
    <user>SA</user>
    <password/>
    <driver>org.h2.Driver</driver>
    <url>jdbc:h2:${artifacts.config.dir}/../artifacts-data/datacagedb/datacage</url>
</datacage>