dépendances php 7.3

composer.json

@@ -29,6 +29,7 @@
     },
     "require-dev": {
         "symfony/debug-pack": "^1.0",
+	"ocramius/proxy-manager": "<2.1",
         "symfony/maker-bundle": "^1.0",
         "symfony/profiler-pack": "*",
         "symfony/test-pack": "*"