Increasing minimum DBAL version (again)

Author: moufmouf

composer.json

@@ -11,7 +11,7 @@
     "require": {
         "php": ">=7.1",
         "thecodingmachine/dbal-fluid-schema-builder": "^1.4",
-        "doctrine/dbal": "^2.4"
+        "doctrine/dbal": "^2.5"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.5.6",