Updates the python3-fasteners package considering that the 0.15 version
doesn't support Python 3.8, only Python 3.5 or less. The 0.16.3 version
support Python 3.8.
The non-support of Python 3.8 results in the malfunction of many layers
in the dunfell branch.
Signed-off-by: Maíra Canal <maira.canal@usp.br>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
