Pin TypeScript version

Author: ryanlua

package-lock.json

@@ -17,6 +17,7 @@
     "@minecraft/core-build-tasks": "^5.7.0",
     "eslint-plugin-minecraft-linting": "^2.0.12",
     "ts-node": "^10.9.1",
+    "typescript": "^5.9.3",
     "typescript-eslint": "^8.60.1"
   },
   "scripts": {