Bump redis from 3.0.2 to 3.1.1 in /node-bb/install

Bumps [redis](https://github.com/redis/node-redis) from 3.0.2 to 3.1.1.
- [Release notes](https://github.com/redis/node-redis/releases)
- [Changelog](https://github.com/redis/node-redis/blob/master/CHANGELOG.md)
- [Commits](redis/node-redis@v3.0.2...v3.1.1)

---
updated-dependencies:
- dependency-name: redis
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

node-bb/install/package.json

@@ -117,7 +117,7 @@
     "postcss-clean": "1.1.0",
     "promise-polyfill": "^8.1.3",
     "prompt": "^1.0.0",
-    "redis": "3.0.2",
+    "redis": "3.1.1",
     "request": "2.88.2",
     "request-promise-native": "^1.0.8",
     "rimraf": "3.0.2",