Prepare 2025.4.3 release (#3590)

Author: markus-moser

composer.json

@@ -19,7 +19,7 @@
     "require": {
         "php": "~8.3.0 || ~8.4.0",
         "pimcore/pimcore": "^12.3",
-        "pimcore/studio-backend-bundle": "^2025.4.2"
+        "pimcore/studio-backend-bundle": "^2025.4.3"
     },
     "require-dev": {
         "codeception/codeception": "^5.3.5",