doctrine/persistence 1.3 introduced a change of namespace which breaks with doctrine/orm 2.5

doctrine/orm 2.5 does not use doctrine/persistence, so we are not able to
require doctrine/persistence 1.3 and fix issues related to change of
namespace. Instead we must use the old doctrine/persistence until
something else forces us to drop support of 7.0 in laravel-doctrine/1.4.

Author: eigan

composer.json

@@ -38,6 +38,9 @@
         "illuminate/notifications": "5.5.*|5.6.*|5.7.*|5.8.*",
         "illuminate/queue": "5.5.*|5.6.*|5.7.*|5.8.*"
     },
+    "conflict": {
+        "doctrine/persistence": ">=1.3@dev"
+    },
     "autoload": {
         "psr-4": {
             "LaravelDoctrine\\ORM\\": "src/"