Bump python-dateutil from 2.8.1 to 2.8.2

Bumps [python-dateutil](https://github.com/dateutil/dateutil) from 2.8.1 to 2.8.2.
- [Release notes](https://github.com/dateutil/dateutil/releases)
- [Changelog](https://github.com/dateutil/dateutil/blob/master/NEWS)
- [Commits](dateutil/dateutil@2.8.1...2.8.2)

---
updated-dependencies:
- dependency-name: python-dateutil
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
 pytz==2021.1
 phonenumbers==8.12.31
-python-dateutil==2.8.1
+python-dateutil==2.8.2
 timezonefinder==5.2.0