add twine to dev requirements

dev-requirements.txt

@@ -2,34 +2,49 @@ astroid==2.4.2
 atomicwrites==1.3.0
 attrs==19.1.0
 bandit==1.6.2
+bleach==3.1.5
 certifi==2019.6.16
+cffi==1.14.0
 chardet==3.0.4
 Click==7.0
+cryptography==2.9.2
+docutils==0.16
 dparse==0.5.1
 gitdb2==2.0.5
 GitPython==2.1.11
 idna==2.8
 importlib-metadata==0.18
 isort==4.3.20
+jeepney==0.4.3
+keyring==21.2.1
 lazy-object-proxy==1.4.1
 mccabe==0.6.1
 more-itertools==7.0.0
 packaging==19.0
 pbr==5.3.0
+pkginfo==1.5.0.1
 pluggy==0.12.0
 py==1.8.0
+pycparser==2.20
+Pygments==2.6.1
 pylint==2.5.3
 pyparsing==2.4.0
 pytest==5.0.1
 PyYAML==5.3.1
+readme-renderer==26.0
 requests==2.23.0
+requests-toolbelt==0.9.1
 safety==1.9.0
+SecretStorage==3.1.2
 six==1.12.0
 smmap2==2.0.5
 stevedore==1.30.1
 toml==0.10.1
+tqdm==4.46.1
+twine==3.1.1
 typed-ast==1.4.0
 urllib3==1.25.9
 wcwidth==0.1.7
+webencodings==0.5.1
 wrapt==1.11.2
 zipp==0.5.1