chore(deps): update babel monorepo to v8

Author: renovate[bot]

packages/ember-cookies/package.json

@@ -57,8 +57,8 @@
   "devDependencies": {
     "@babel/core": "7.28.6",
     "@babel/plugin-proposal-class-properties": "7.18.6",
-    "@babel/plugin-proposal-decorators": "7.28.6",
-    "@babel/plugin-transform-typescript": "7.28.6",
+    "@babel/plugin-proposal-decorators": "8.0.2",
+    "@babel/plugin-transform-typescript": "8.0.1",
     "@embroider/addon-dev": "8.1.2",
     "@eslint/eslintrc": "3.3.5",
     "@eslint/js": "9.39.4",

packages/test-app/package.json

@@ -25,7 +25,7 @@
     "test:watch": "pnpm test:one ember-default --- ember test --server"
   },
   "devDependencies": {
-    "@babel/eslint-parser": "7.28.6",
+    "@babel/eslint-parser": "8.0.1",
     "@ember/optional-features": "3.0.0",
     "@ember/string": "4.0.1",
     "@ember/test-helpers": "5.4.2",