chore: update composer to use Twig greater than 1.38

Security fix

Author: kenjis

composer.json

@@ -14,7 +14,7 @@
     ],
     "require": {
         "php": ">=5.4.0",
-        "twig/twig": "~1.22"
+        "twig/twig": "~1.38"
     },
     "require-dev": {
         "codeigniter/framework": "3.1.*",