Check all the maven dependencies in the che-server repository with the dash-licenses tool

[vinokurig]

Is your task related to a problem? Please describe

Need to be sure that all the maven dependencies of the che-server repository meet the Eclipse open source project requirements.

Describe the solution you'd like

• Use https://github.com/che-incubator/dash-licenses tool to check the dependencies.
• Consider adding a CI job to run the dependency verification on each PR.

Describe alternatives you've considered

No response

Additional context

No response