Addind os2forms 4.0 support

Author: stankut

composer.json

@@ -20,7 +20,7 @@
         "drupal/gin": "^3.0-rc",
         "drupal/core": "^9 || ^10",
         "drush/drush": "^11.4 || ^12",
-        "os2forms/os2forms": "^3.6 || dev-f/d10_readiness",
+        "os2forms/os2forms": "^3.6 || ^4.0",
         "os2web/os2web_simplesaml": "8.x-dev || master",
         "drupal/cache_control_override": "^1.1|^2.0"
     },