Bump twine from 1.15.0 to 3.2.0

Bumps [twine](https://github.com/pypa/twine) from 1.15.0 to 3.2.0.
- [Release notes](https://github.com/pypa/twine/releases)
- [Changelog](https://github.com/pypa/twine/blob/master/docs/changelog.rst)
- [Commits](pypa/twine@1.15.0...3.2.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements_dev.txt

@@ -5,5 +5,5 @@ pip==20.2.4
 pytest==6.1.2
 Sphinx==3.2.1
 tox==3.20.1
-twine==1.15.0
+twine==3.2.0
 wheel==0.35.1