Bump ioredis and @types/ioredis

Bumps [ioredis](https://github.com/luin/ioredis) and [@types/ioredis](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/ioredis). These dependencies needed to be updated together.

Updates `ioredis` from 4.17.3 to 5.3.2
- [Release notes](https://github.com/luin/ioredis/releases)
- [Changelog](https://github.com/redis/ioredis/blob/main/CHANGELOG.md)
- [Commits](redis/ioredis@v4.17.3...v5.3.2)

Updates `@types/ioredis` from 4.17.4 to 5.0.0
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/ioredis)

---
updated-dependencies:
- dependency-name: ioredis
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: "@types/ioredis"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -29,7 +29,7 @@
     "@companieshouse/structured-logging-node": "^1.0.0",
     "crypto": "^1.0.1",
     "express-async-handler": "^1.1.4",
-    "ioredis": "^4.17.3",
+    "ioredis": "^5.3.2",
     "msgpack5": "^4.5.1",
     "on-headers": "^1.0.2"
   },
@@ -38,7 +38,7 @@
     "@types/chai": "^4.2.13",
     "@types/cookie-parser": "^1.4.2",
     "@types/express": "^4.17.8",
-    "@types/ioredis": "^4.17.4",
+    "@types/ioredis": "^5.0.0",
     "@types/mocha": "^8.0.3",
     "@types/msgpack5": "^3.4.1",
     "@types/on-headers": "^1.0.0",