more permisive version of middleware/utils requirement

Author: oscarotero

composer.json

@@ -19,7 +19,7 @@
     "require": {
         "php": "^5.6 || ^7.0",
         "http-interop/http-middleware": "^0.2",
-        "middlewares/utils": "^0.1.0"
+        "middlewares/utils": "0.*"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.5",