Allow doctrine/persistence 4.x (#30)

Author: JanTvrdik

composer.json

@@ -12,7 +12,7 @@
     "require-dev": {
         "composer/semver": "^3.0",
         "doctrine/collections": "^2.2",
-        "doctrine/persistence": "^3.3",
+        "doctrine/persistence": "^3.3 || ^4.0",
         "editorconfig-checker/editorconfig-checker": "^10.6.0",
         "ergebnis/composer-normalize": "^2.42.0",
         "nette/utils": "^4",