Template: [js] Update typescript 5.9.3 → 6.0.2 (major) (#1475)

* Apply template update: [js] Update typescript 5.9.3 → 6.0.2 (major)

Source: mockdeep/Rails-Template#1384

Author: rails-template-sync[bot]

package.json

@@ -46,7 +46,7 @@
     "stylelint-config-recess-order": "^7.7.0",
     "stylelint-config-standard": "^40.0.0",
     "stylelint-selector-bem-pattern": "^4.0.1",
-    "typescript": "^5.9.3",
+    "typescript": "^6.0.2",
     "typescript-eslint": "^8.57.2",
     "vitest": "^4.1.0"
   },