Bump types-pytz from 2021.3.6 to 2021.3.8
Bump types-pytz from 2021.3.6 to 2021.3.8

Bumps [types-pytz](https://github.com/python/typeshed) from 2021.3.6 to 2021.3.8.
- [Release notes](https://github.com/python/typeshed/releases)
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-pytz
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
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