Bump botocore from 1.16.12 to 1.16.13 in /requirements
Bump botocore from 1.16.12 to 1.16.13 in /requirements

Bumps [botocore](https://github.com/boto/botocore) from 1.16.12 to 1.16.13.
- [Release notes](https://github.com/boto/botocore/releases)
- [Changelog](https://github.com/boto/botocore/blob/develop/CHANGELOG.rst)
- [Commits](https://github.com/boto/botocore/compare/1.16.12...1.16.13)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
wagnerand/addons-server,mozilla/addons-server,diox/olympia,eviljeff/olympia,bqbn/addons-server,mozilla/olympia,bqbn/addons-server,mozilla/addons-server,mozilla/addons-server,wagnerand/addons-server,eviljeff/olympia,mozilla/olympia,eviljeff/olympia,eviljeff/olympia,bqbn/addons-server,bqbn/addons-server,wagnerand/addons-server,wagnerand/addons-server,mozilla/addons-server,diox/olympia,mozilla/olympia,mozilla/olympia,diox/olympia,diox/olympia