Update got to v11 (#794)

* update got to v11

* don't call response.body because the response is the body now

* bump timeout to 30 seconds

Author: strmer15

lib/routes/install.js

@@ -59,8 +59,9 @@ function searchMatchingGenerators(app, term, cb) {
     }, cb);
   }
 
-  got('http://yeoman.io/blacklist.json', {json: true})
-    .then(response => handleDenyList(response.body))
+  got('http://yeoman.io/blacklist.json')
+    .json()
+    .then(response => handleDenyList(response))
     .catch(() => handleDenyList([]));
 }