fix(ci): remove quotes from test glob for Node.js v20 compatibility

Author: nahyeongjin1

package.json

@@ -38,7 +38,7 @@
     "start": "CLIMEM=8999 node -r climem ./examples/example",
     "test": "npm run test:unit && npm run test:typescript",
     "test:typescript": "tsd",
-    "test:unit": "c8 --100 node --test 'test/*.test.js'"
+    "test:unit": "c8 --100 node --test test/*.test.js"
   },
   "repository": {
     "type": "git",