fix: memory leak regression (#207) (#209)

Author: hudochenkov

lib/routes.js

@@ -9,7 +9,7 @@
   included in all copies or substantial portions of this Source Code Form.
 */
 const router = require('koa-route');
-const stringify = require('safe-stable-stringify');
+const stringify = require('json-stringify-safe');
 const stripAnsi = require('strip-ansi');
 
 const prep = (data) => stringify(data);

package-lock.json

@@ -45,6 +45,7 @@
     "http-proxy-middleware": "^1.0.3",
     "is-path-cwd": "^2.2.0",
     "is-promise": "^4.0.0",
+    "json-stringify-safe": "^5.0.1",
     "koa": "^2.5.3",
     "koa-compress": "^5.0.1",
     "koa-connect": "^2.0.1",
@@ -56,7 +57,6 @@
     "open": "^7.0.3",
     "p-defer": "^3.0.0",
     "rimraf": "^3.0.2",
-    "safe-stable-stringify": "^1.1.1",
     "strip-ansi": "^6.0.0",
     "superstruct": "^0.12.1",
     "webpack-plugin-ramdisk": "^0.1.2",