D10 Bumping Core and Drush versions

Author: stankut

composer.json

@@ -18,8 +18,8 @@
     "require": {
         "cweagans/composer-patches": "^1.6.5",
         "drupal/gin": "^3.0-rc",
-        "drupal/core": "^9",
-        "drush/drush": "^11.4",
+        "drupal/core": "^9 || ^10",
+        "drush/drush": "^11.4 || ^12",
         "os2forms/os2forms": "^3.6 || dev-f/d10_readiness",
         "os2web/os2web_simplesaml": "8.x-dev || master",
         "drupal/cache_control_override": "^1.1|^2.0"