test(package): fix ESM test command

Author: remarkablemark

package.json

@@ -17,7 +17,7 @@
     "prepublishOnly": "npm run lint && npm run lint:tsc && npm run test:ci && npm run test:esm && npm run clean && npm run build",
     "test": "jest",
     "test:ci": "CI=true jest --ci --colors --coverage",
-    "test:esm": "npm run build && node --test src",
+    "test:esm": "npm run build && node --test **/*.test.mjs",
     "test:watch": "jest --watch"
   },
   "repository": {