Update dependencies

[dheid]

Hi @tholu !

I want to use your library in my project. But a requirement is that the dependencies are up-to-date. Could you please add Dependabot to your project? It creates pull-requests that can be simply merged.

I added the Dependabot file and ran mvn install. One test had to be updated, but the rest seems okay.

Would be great if you could merge this pull request. Many thanks!

Daniel

[tholu]

@dheid This looks great, thanks! Do you want to add to this branch or can I already merge it?

[dheid]

Yes can merge it. I will open another pull request later.