Start working on compatibility with doctrine/persistence 4.0

Author: Pierstoval

composer.json

@@ -16,7 +16,7 @@
         "php": "^7.3|^8.0",
         "doctrine/data-fixtures": "^1.4|^2.0",
         "doctrine/instantiator": "^1.3|^2.0",
-        "doctrine/persistence": "^1.3|^2.0|^3.0"
+        "doctrine/persistence": "^1.3|^2.0|^3.0|^4.0"
     },
     "require-dev": {
         "doctrine/orm": "^2.7|^3.0",

tests/Stubs/ObjectManagerStub_php81.php

@@ -64,11 +64,11 @@ public function find(string $className, $id, LockMode|int|null $lockMode = null,
     {
     }
 
-    public function remove(object $object)
+    public function remove(object $object): void
     {
     }
 
-    public function clear()
+    public function clear(): void
     {
     }