Fix dependency report generation for new minor releases
Fix dependency report generation for new minor releases

This fixes the generation of the dependency report for new, non-patch
minor releases where the release notes are just being retrieved from the
remote location. The mentioned `endRev` has to be the latest git commit
of the release branch, because the tag does not even exist on
generation.

Signed-off-by: Sascha Grunert <70ab469ddb2ac3e35f32ed7c2fd1cca514b2e879@suse.com>

kubernetes/release,kubernetes/release