Bump browserify from 16.3.0 to 16.4.0

Bumps [browserify](https://github.com/browserify/browserify) from 16.3.0 to 16.4.0.
- [Release notes](https://github.com/browserify/browserify/releases)
- [Changelog](https://github.com/browserify/browserify/blob/master/changelog.markdown)
- [Commits](browserify/browserify@v16.3.0...v16.4.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -28,7 +28,7 @@
   "dependencies": {
     "axios": "^0.19.0",
     "babel-minify": "^0.5.0",
-    "browserify": "^16.3.0",
+    "browserify": "^16.4.0",
     "dog-names": "^2.0.0",
     "ioredis": "^4.14.0",
     "koa": "^2.7.0",