Updated zend-view to the version which supports PHP 7.3

Author: michalbundyra

composer.json

@@ -27,7 +27,7 @@
         "zendframework/zend-expressive-router": "^3.0",
         "zendframework/zend-expressive-template": "^2.0",
         "zendframework/zend-servicemanager": "^2.7.8 || ^3.3",
-        "zendframework/zend-view": "^2.8.1"
+        "zendframework/zend-view": "^2.11.1"
     },
     "require-dev": {
         "malukenho/docheader": "^0.1.5",