chore(deps): bump handlebars in /tests/apps/.websocket.disabled

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.6.0 to 4.7.1.
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/wycats/handlebars.js/blob/v4.7.1/release-notes.md)
- [Commits](https://github.com/wycats/handlebars.js/compare/v4.6.0...v4.7.1)

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

tests/apps/.websocket.disabled/package.json

@@ -6,7 +6,7 @@
   "dependencies": {
     "express": "4.17.x",
     "connect": "*",
-    "handlebars": "~4.6.0",
+    "handlebars": "~4.7.1",
     "socket.io": "~2.3.0",
     "express3-handlebars": "~0.5.2"
   },