fix(i18n): use T3v12.4.9+ for _LOCAL_LANG

_LOCAL_LANG l10n overrides/extensions stopped working in non-Extbase contexts
 That was fixed in https://review.typo3.org/c/Packages/TYPO3.CMS/+/82023 which
was released with TYPO3 v12.4.9.

Relates: #304

composer.json

@@ -16,7 +16,7 @@
     },
     "require": {
         "php": "^7.4 || ^8.0",
-        "typo3/cms-core": "^12 || 12.*.x-dev || dev-main"
+        "typo3/cms-core": "^12.4.9 || 12.*.x-dev || dev-main"
     },
     "require-dev": {
         "browserstack/browserstack-local": "dev-master",