Replace death star version constraint for cakephp/chronos

https://thephp.cc/news/2017/02/death-star-version-constraint

src/I18n/composer.json

@@ -31,7 +31,7 @@
         "php": ">=5.6.0",
         "cakephp/core": "^3.0.0",
         "ext-intl": "*",
-        "cakephp/chronos": "*",
+        "cakephp/chronos": "^1.0.0",
         "aura/intl": "^3.0.0"
     },
     "suggest": {