Feature/130 add db to docker

[XtophB]

Context

This PR adds a PostgreSQL database to the docker compose file. This allows us to deploy the game with a DB in the future.

Description

• Add postgres 16 to docker
• Add volume for persistent storage even when container lifecycle ends
• Container will now only start when DB is live
• Add H2 database as a temporary solution for future branches while working on DB creation for persistence. We now have a temporary mock DB in memory for every test suit run.

Changes in the code base

• pom file now contains new dependencies
• docker compose file updated to include databse
• application.yaml creates a localhost database when we run application in IDE
  • This is overwritten when we deploy and containerize as docker compose injects the env postgres url into localhost url
• We now have in memory database for tests.

Changes outside the code base

N/A

Additional information

N/A

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[XtophB]

Original plan:

docker db -> dev
docker db -> main

It makes more sense to do:

docker db -> dev
dev -> main