An in-range update of connect-redis is breaking the build 🚨

## The dependency [connect-redis](https://github.com/visionmedia/connect-redis) was updated from `3.4.1` to `3.4.2`.

🚨 [View failing branch](https://github.com/aethant/merino/compare/master...aethant:greenkeeper%2Fconnect-redis-3.4.2).

This version is **covered** by your **current version range** and after updating it in your project **the build failed**.

connect-redis is a direct dependency of this project, and **it is very likely causing it to break**. If other packages depend on yours, this update is probably also breaking those in turn.

Status Details

- ❌ **continuous-integration/travis-ci/push:** The Travis CI build failed ([Details](https://travis-ci.org/aethant/merino/builds/561024985?utm_source=github_status&utm_medium=notification)).

---

Commits

The new version differs by 4 commits.

• 5469fcb v3.4.2


• 3609797 Fix compatibility issues with ioredis + Cluster


• a2babda Bump devDependencies


• e8744e4 Session check verbiage reduction

See the full diff

FAQ and help

There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html). If those don’t help, you can always [ask the humans behind Greenkeeper](https://github.com/greenkeeperio/greenkeeper/issues/new).

---

Your [Greenkeeper](https://greenkeeper.io) Bot :palm_tree:

Start by reproducing the failure on the Greenkeeper connect-redis 3.4.2 branch and inspect the Travis CI build linked in the issue. Compare the four listed connect-redis commits with the project's dependency configuration, then verify that the build passes with a compatible dependency version.

索引モデルが issue の本文から書いたものです。