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: ChangeLog
+Copyright: extends to 2018.
+License: UNKNOWN
+
+Files: ChangeLog.old
+Copyright: extends to 2016.
+License: UNKNOWN
+
+Files: Makefile.am
+ ZHfstOspeller.cc
+ ZHfstOspeller.h
+ ZHfstOspellerXmlMetadata.cc
+ ZHfstOspellerXmlMetadata.h
+ configure.ac
+ hfst-ol.cc
+ hfst-ol.h
+ hfstol-stdafx.h
+ main-cicling.cc
+ main-fsmnlp-2012.cc
+ main-ispell.cc
+ main-lrec2013.cc
+ main-norvig.cc
+ main-survey.cc
+ main.cc
+ office.cc
+ ospell.cc
+ ospell.h
+Copyright: 2009, 2010, 2015, University of Helsinki
+License: Apache-2.0
+
+Files: ChangeLog ChangeLog.old hfst-ospell-office.1 hfst-ospell.1 hfst-ospell-office.1 hfst-ospell.1 tests/* tests/empty_titles.zhfst tests/no_errormodel.zhfst
+Copyright: 2009-2020, Department of Modern Languages, University of Helsinki
+ See AUTHORS for more copyrights.
+License: Apache-2.0
+
+Files: debian/*
+Copyright: 2009-2020, Department of Modern Languages, University of Helsinki
+  See AUTHORS for more copyrights.
+License: Apache-2.0
+
+Files: hfst-ospell-office.1
+ hfst-ospell.1
+Copyright: 2009-2018, University of Helsinki
+License: UNKNOWN
+
+Files: m4/*
+Copyright: 2011, Maarten Bosmans <mkbosmans@gmail.com>
+ 2008, Guido U. Draheim <guidod@gmx.de>
+License: GPL-3+ with Autoconf-2.0~Archive exception
+
+Files: tests/*
+Copyright: no-info-found
+License: UNKNOWN
+
+Files: tests/empty_titles.zhfst
+Copyright: no-info-found
+License: UNKNOWN
+
+Files: tests/no_errormodel.zhfst
+Copyright: no-info-found
+License: UNKNOWN
+