Update to Stratigility 1.3.3

Since we are calling `raiseThrowables()`, we need a 1.3 release.

Author: weierophinney

composer.json

@@ -22,7 +22,7 @@
         "zendframework/zend-diactoros": "^1.1",
         "zendframework/zend-expressive-router": "^1.1",
         "zendframework/zend-expressive-template": "^1.0.1",
-        "zendframework/zend-stratigility": ">=1.1.0 < 1.3.0 || >=1.3.1 <2.0.0"
+        "zendframework/zend-stratigility": "^1.3.3"
     },
     "require-dev": {
         "filp/whoops": "^1.1 || ^2.0",