package/lua-silva: bump to version 0.1.7
diff COPYRIGHT:
-Copyright (C) 2017-2019 Francois Perrad.
+Copyright (C) 2017-2021 Francois Perrad.
Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>