Fix the stage for the rebase check.
After the upgrade it looks like that the pipeline doesn't run any longer in
the context of the forked project but in context of the master project such
that the project path wasn't correct any longer. This allows now to compare
upstream/master to HEAD.

We don't want to have files with dos CRLF line endings in the repository,
so we test if any of the changed files has this file type.

run 831 parameters, others to follow soon

A new geometry with the tag v20a, containing changed z positions.
This commit updates the parameter directories accordingly.