[TASK] Allow experimental installation with TYPO3 v12

composer.json

@@ -90,14 +90,14 @@
         "psr/http-client": "^1.0",
         "psr/http-factory": "^1.0",
         "psr/http-message": "^1.0",
-        "typo3/cms-backend": "^11.5",
-        "typo3/cms-core": "^11.5",
-        "typo3/cms-extbase": "^11.5",
-        "typo3/cms-extensionmanager": "^11.5",
-        "typo3/cms-fluid": "^11.5",
-        "typo3/cms-form": "^11.5",
-        "typo3/cms-frontend": "^11.5",
-        "typo3/cms-install": "^11.5",
+        "typo3/cms-backend": "^11.5 || ^12.4",
+        "typo3/cms-core": "^11.5 || ^12.4",
+        "typo3/cms-extbase": "^11.5 || ^12.4",
+        "typo3/cms-extensionmanager": "^11.5 || ^12.4",
+        "typo3/cms-fluid": "^11.5 || ^12.4",
+        "typo3/cms-form": "^11.5 || ^12.4",
+        "typo3/cms-frontend": "^11.5 || ^12.4",
+        "typo3/cms-install": "^11.5 || ^12.4",
         "typo3fluid/fluid": "^2.6"
     },
     "require-dev": {
@@ -110,15 +110,15 @@
         "phpstan/phpstan-deprecation-rules": "^1.1",
         "phpstan/phpstan-phpunit": "^1.3",
         "phpstan/phpstan-strict-rules": "^1.5",
-        "typo3/cms-belog": "^11.5",
-        "typo3/cms-beuser": "^11.5",
-        "typo3/cms-filelist": "^11.5",
-        "typo3/cms-fluid-styled-content": "^11.5",
-        "typo3/cms-lowlevel": "^11.5",
-        "typo3/cms-rte-ckeditor": "^11.5",
-        "typo3/cms-seo": "^11.5",
-        "typo3/cms-setup": "^11.5",
-        "typo3/cms-tstemplate": "^11.5",
+        "typo3/cms-belog": "^11.5 || ^12.4",
+        "typo3/cms-beuser": "^11.5 || ^12.4",
+        "typo3/cms-filelist": "^11.5 || ^12.4",
+        "typo3/cms-fluid-styled-content": "^11.5 || ^12.4",
+        "typo3/cms-lowlevel": "^11.5 || ^12.4",
+        "typo3/cms-rte-ckeditor": "^11.5 || ^12.4",
+        "typo3/cms-seo": "^11.5 || ^12.4",
+        "typo3/cms-setup": "^11.5 || ^12.4",
+        "typo3/cms-tstemplate": "^11.5 || ^12.4",
         "typo3/testing-framework": "^7.0 || ^8.0"
     }
 }