Update pom.xml so it can handle new process of deploying new tag into the maven repository

[mnovak]

For more info see:
https://docs.google.com/document/d/1-6_vmFWzRVuMRwSuv_nOgG530qSDe6Ipc_eCERv6lrE/edit?pli=1&tab=t.0

[simkam]

I'm not sure how much is that document valid for XTF/jbossqe-eap repository. It hasn't enabled staging repository. AFAICT it should work fine just with #607. + you need to update secrets in GitHub with new username/token values for GitHub actions.

[mnovak]

@simkam Ok, so it's not necessary to start using nxrm3-maven-plugin plugin?

[simkam]

No, it is not needed.