chore(deps-dev): Bump twine from 3.0.0 to 3.1.1

Bumps [twine](https://github.com/pypa/twine) from 3.0.0 to 3.1.1.
- [Release notes](https://github.com/pypa/twine/releases)
- [Changelog](https://github.com/pypa/twine/blob/master/docs/changelog.rst)
- [Commits](pypa/twine@3.0.0...3.1.1)

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

requirements.txt

@@ -27,12 +27,12 @@ mccabe==0.6.1
 more-itertools==7.2.0
 packaging==19.2
 pkginfo==1.5.0.1
-pluggy==0.13.0
+pluggy==0.13.1
 py==1.8.0
 pycodestyle==2.5.0
 pycparser==2.19
 pyflakes==2.1.1
-pygments==2.4.2
+pygments==2.5.1
 pyparsing==2.4.5
 pytest-cov==2.8.1
 pytest==5.3.0
@@ -54,9 +54,9 @@ sphinxcontrib-qthelp==1.0.2
 sphinxcontrib-serializinghtml==1.1.3
 toml==0.10.0
 tox==3.14.1
-tqdm==4.38.0
-twine==3.0.0
+tqdm==4.39.0
+twine==3.1.1
 urllib3==1.25.7
-virtualenv==16.7.7
+virtualenv==16.7.8
 wcwidth==0.1.7
 webencodings==0.5.1