build(deps): bump mako from 1.0.10 to 1.0.11

Bumps [mako](https://github.com/sqlalchemy/mako) from 1.0.10 to 1.0.11.
- [Release notes](https://github.com/sqlalchemy/mako/releases)
- [Changelog](https://github.com/sqlalchemy/mako/blob/master/CHANGES)
- [Commits](https://github.com/sqlalchemy/mako/commits)

requirements.txt

@@ -11,7 +11,7 @@ Flask-WTF==0.14.2
 gunicorn==19.9.0
 itsdangerous==1.1.0
 Jinja2==2.10.1
-Mako==1.0.10
+Mako==1.0.11
 MarkupSafe==1.1.1
 mccabe==0.6.1
 pycodestyle==2.5.0