Refresh the automatically detected licensing information

Signed-off-by: Apertis CI robot <noreply+not_a_robot@apertis.org>

debian/apertis/copyright

+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+
+Files: *
+Copyright: no-info-found
+License: Apache-2.0
+
+Files: debian/*
+Copyright: 2018, Emmanuel Bourg <ebourg@apache.org>
+License: Apache-2.0
+
+Files: src/*
+Copyright: 2018, Emmanuel Bourg <ebourg@apache.org>
+License: Apache-2.0