Bump trove-classifiers from 2020.4.1 to 2020.4.9 (#7783)
Bump trove-classifiers from 2020.4.1 to 2020.4.9 (#7783)

Bumps [trove-classifiers](https://github.com/pypa/trove-classifiers) from 2020.4.1 to 2020.4.9.
- [Release notes](https://github.com/pypa/trove-classifiers/releases)
- [Commits](https://github.com/pypa/trove-classifiers/commits)

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

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
pypa/warehouse,pypa/warehouse,pypa/warehouse,pypa/warehouse