Update eslint-config-standard to version 16.0.0

Author: depfu[bot]

package.json

@@ -30,7 +30,7 @@
     "coveralls": "^3.0.9",
     "eslint": "^7.1.0",
     "eslint-config-prettier": "^6.0.0",
-    "eslint-config-standard": "^15.0.0",
+    "eslint-config-standard": "^16.0.0",
     "eslint-plugin-import": "^2.18.2",
     "eslint-plugin-mocha": "^8.0.0",
     "eslint-plugin-node": "^11.0.0",