Bump ioredis from 4.28.0 to 5.1.0

Bumps [ioredis](https://github.com/luin/ioredis) from 4.28.0 to 5.1.0.
- [Release notes](https://github.com/luin/ioredis/releases)
- [Changelog](https://github.com/luin/ioredis/blob/main/CHANGELOG.md)
- [Commits](redis/ioredis@v4.28.0...v5.1.0)

---
updated-dependencies:
- dependency-name: ioredis
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -57,15 +57,15 @@
     "eslint": "^7.7.0",
     "graphql": "^15.7.2",
     "graphql-subscriptions": "^2.0.0",
-    "ioredis": "^4.17.3",
+    "ioredis": "^5.1.0",
     "mocha": "^10.0.0",
     "nyc": "^15.1.0",
     "simple-mock": "^0.8.0",
     "ts-node": "^10.4.0",
     "typescript": "^4.0.2"
   },
   "optionalDependencies": {
-    "ioredis": "^4.17.3"
+    "ioredis": "^5.1.0"
   },
   "typings": "dist/index.d.ts",
   "typescript": {