Optimise Maven build

[boonen]

This library is also a showcase of how to build a project effectively using a common CI/CD solution (in this case GitHub). It would be great to optimise the build as much as possible, e.g. by parallelising, disabling slow features like logging and by benefiting from caches.

Ideas to apply

• JUnit Jupiter parallel tests
• Maven Build cache extension
• Disabling non-essential loggers
• JVM tuning

Additional context
Apply some ideas from this talk by Maarten Mulders: https://www.youtube.com/watch?v=sCkJURhQZUM