fix: pasrse cli and env integers

lib/config/cli.js

@@ -24,6 +24,7 @@ function getConfig(argv) {
     boolean: val => val === 'true',
     list: val => val.split(',').map(el => el.trim()),
     string: val => val,
+    integer: parseInt,
   };
 
   let program = new commander.Command().arguments('[repositories...]');

lib/config/env.js

@@ -26,6 +26,7 @@ function getConfig(env) {
     list: val => val.split(',').map(el => el.trim()),
     string: val => val,
     json: val => JSON.parse(val),
+    integer: parseInt,
   };
 
   options.forEach(option => {