chore: bump ioredis from 4.23.0 to 4.26.0

Bumps [ioredis](https://github.com/luin/ioredis) from 4.23.0 to 4.26.0.
- [Release notes](https://github.com/luin/ioredis/releases)
- [Changelog](https://github.com/luin/ioredis/blob/master/Changelog.md)
- [Commits](redis/ioredis@v4.23.0...v4.26.0)

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

package.json

@@ -79,7 +79,7 @@
     "helmet": "4.4.1",
     "highlight.js": "10.6.0",
     "http-proxy-middleware": "1.0.6",
-    "ioredis": "4.23.0",
+    "ioredis": "4.26.0",
     "ioredis-mock": "5.2.4",
     "jsdom": "16.5.1",
     "node-fetch": "2.6.1",