Adapt TRG 2.03 to not make the DEPENDENCIES file mandatory. The point is, that we need a dependency check in the release and a corresponding DEPENDENCIES file there, but it is not necessary to keep the file constantly up-to-date in the repository.

[lgblaumeiser]

2025-11-21:

• Check this with the Eclipse Foundation.
• If we remove the DEPENDENCY, how do we enforce people to do it?
• Maybe we force the "TOOL" and not the "DEPENDENCY".
• Maybe apply just for the release.
  @tom-rm-meyer-ISST

2025-12-19:
@lgblaumeiser and @tom-rm-meyer-ISST will have a look at the "TOOL" solution