Bump pytz from 2020.1 to 2021.1

Bumps [pytz](https://github.com/stub42/pytz) from 2020.1 to 2021.1. - [Release notes](https://github.com/stub42/pytz/releases) - [Commits](https://github.com/stub42/pytz/compare/release_2020.1...release_2021.1)

Bump pytz from 2020.1 to 2021.1
Bumps [pytz](https://github.com/stub42/pytz) from 2020.1 to 2021.1. - [Release notes](https://github.com/stub42/pytz/releases) - [Commits](https://github.com/stub42/pytz/compare/release_2020.1...release_2021.1)
113eacc1 · WKDV Bot · b077ac18 · 113eacc1
Commit 113eacc1 authored 3 years ago by WKDV Bot 🤖
--- a/dios/requirements.txt
+++ b/dios/requirements.txt
 numpy==1.19.1
 pandas==1.1.1
 python-dateutil==2.8.1
-pytz==2020.1
+pytz==2021.1
 six==1.15.0