MNT Update development dependencies

GuySartorelli · GuySartorelli · commit 1d0f2d8a5a3c · 2023-03-10T16:34:06.000+13:00
diff --git a/composer.json b/composer.json
@@ -15,7 +15,7 @@
     ],
     "require": {
         "php": "^7.4 || ^8.0",
-        "silverstripe/cms": "4.13.0-beta1"
+        "silverstripe/cms": "4.13.x-dev"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5",
