could not find bundle rock using debian packages 20.06 (test branch)

[mmaurus]

@2maz

Traceback (most recent call last):
	5: from /opt/rock/master-20.06/rock-master-20.06-ruby-base-scripts/bin/rock-bundle-info:4:in '<main>'
	4: from /opt/rock/master-20.06/rock-master-20.06-ruby-base-scripts/lib/ruby/vendor_ruby/rock/bundles.rb:270:in 'setup_search_paths'
	3: from /opt/rock/master-20.06/rock-master-20.06-ruby-base-scripts/lib/ruby/vendor_ruby/rock/bundles.rb:247:in 'discover_dependencies'
	2: from /opt/rock/master-20.06/rock-master-20.06-ruby-base-scripts/lib/ruby/vendor_ruby/rock/bundles.rb:83:in 'each_dependency'
	1: from /opt/rock/master-20.06/rock-master-20.06-ruby-base-scripts/lib/ruby/vendor_ruby/rock/bundles.rb:83:in 'each'
/opt/rock/master-20.06/rock-master-20.06-ruby-base-scripts/lib/ruby/vendor_ruby/rock/bundles.rb:250:in 'block in discover_dependencies': could not find bundle rock, listed as dependency in transfit (/home/dfki.uni-bremen.de/mmaurus/transfit_20.06/bundles/transfit) (Rock::Bundles::BundleNotFound)