chore(deps): Bump dependencies and use docker-login action

[ursjoss]

Resolves #22

• Bumps almost all versions of dependencies to the current versions - except liquibase, where I only bumped to the latest 3.x version (3.10.3), but didn't invest into migrating to liquibase-4.x.
• minimum JRE version is now 17
• Removes obsolete jaxb dependencies
• updates the github action versions used
• set up the github action CI job to log into dockerhub (requires you to add the secrets to the github action, see comment below) and to actively pull the docker containers for postgres and maridb.