Update jenkins version and use jenkins tools bom to allow current plugin builds

[Farix1337]

While working at a small Pull Request to fix a default Locale Test issue. I stumbled upon the problem that the Jenkins Plugins can no longer be build with Jenkins Version 2.222.4 at https://ci.jenkins.io/blue/organizations/jenkins/Plugins because due to minimum version requirement: https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/

Feature Request

It's necessary to update the jenkins version to minimum 2.252 for weekly releases or 2.235.5 for LTS releases to be able to build the plugin in at jenkins.io
Additionally the Jenkins tools bom definied library versions should be used instead of using custom versions, to avoid library versions collisions with other plugins.

I am currently working to resolve this issue with @MintInfusion and @frkautz for preparing an upcoming Feature Request with a Pull Request to implement TOTP Authentication for the Openstack API.

Dependencies

All current dependencies versions that collide with the version definition within the choosen Jenkins Bom
io.jenkins.tools.bom
bom-2.XXXX.x
are affected.

[Farix1337]

With the merge of #331 this issue is done