Deptrac and composer update (#10)

* [Feature] [deptrac] Add deptrac (#5)

* [Feature] [update] Update composer packages (#9)

Author: Timothylul

composer.json

@@ -12,7 +12,7 @@
         "doctrine/doctrine-bundle": "^2.4",
         "doctrine/doctrine-migrations-bundle": "^3.2",
         "doctrine/orm": "^2.10",
-        "doctrine/dbal": "3.1.4",
+        "doctrine/dbal": "^3.1.4",
         "easycorp/easyadmin-bundle": "^3.5",
         "phpdocumentor/reflection-docblock": "^5.3",
         "sensio/framework-extra-bundle": "^6.1",