Bumps [packaging](https://github.com/pypa/packaging) from 19.0 to 20.9.
- [Release notes](https://github.com/pypa/packaging/releases)
- [Changelog](https://github.com/pypa/packaging/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pypa/packaging/compare/19.0...20.9)

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

• Commit 35c7810
• #87: Bump packaging from 19.0 to 20.9
• Branch master

dependabot-preview[bot] authored GitHub committed