chore(deps-dev): bump twine from 1.12.1 to 1.13.0

Bumps [twine](https://github.com/pypa/twine) from 1.12.1 to 1.13.0.
- [Release notes](https://github.com/pypa/twine/releases)
- [Changelog](https://github.com/pypa/twine/blob/master/docs/changelog.rst)
- [Commits](pypa/twine@1.12.1...1.13.0)

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

Author: dependabot-support

requirements.txt

@@ -10,4 +10,4 @@ Sphinx==1.8.4
 sphinxcontrib-log-cabinet==1.0.0
 sphinxcontrib-websupport==1.1.0
 pip==19.0.3
-twine==1.12.1
+twine==1.13.0