Update pytz from 2019.3 to 2020.1
-pytz==2019.3 # https://github.com/stub42/pytz
+pytz==2020.1 # https://github.com/stub42/pytz
python-slugify==4.0.0 # https://github.com/un33k/python-slugify
Pillow==7.1.2 # https://github.com/python-pillow/Pillow
{%- if cookiecutter.use_compressor == "y" %}
