Fix JSON typo in package.json

Author: tjdavey

package.json

@@ -31,7 +31,7 @@
     "docs:typedoc": "typedoc --out docs src",
     "docs:local": "npm run docs:js && cd docs && bundle exec jekyll serve",
     "docs": "npm run docs:js && npm run docs:typedoc && npm run docs:jekyll",
-    "prepare": "npm run build",
+    "prepare": "npm run build"
   },
   "devDependencies": {
     "@eslint/js": "^9.10.0",