Update dependency Mako to v1.3.1

Author: renovate[bot]

requirements.txt

@@ -10,7 +10,7 @@ idna==2.6
 ipfsapi==0.4.2.post1
 itsdangerous==0.24
 Jinja2==2.9.6
-Mako==1.0.7
+Mako==1.3.1
 MarkupSafe==1.0
 python-dateutil==2.6.1
 python-editor==1.0.3