Merge pull request ecamp#6613 from ecamp/renovate/doctrine-orm-3.x

fix(deps): update dependency doctrine/orm to v3.3.1

Author: renovate[bot]

api/composer.json

@@ -10,7 +10,7 @@
         "cweagans/composer-patches": "1.7.3",
         "doctrine/doctrine-bundle": "2.13.1",
         "doctrine/doctrine-migrations-bundle": "3.3.1",
-        "doctrine/orm": "3.2.0",
+        "doctrine/orm": "3.3.1",
         "exercise/htmlpurifier-bundle": "5.0",
         "friendsofsymfony/http-cache": "3.1.0",
         "friendsofsymfony/http-cache-bundle": "3.0.2",