build(deps): bump redis from 1.5.0 to 1.6.0 (#807)

Bumps [redis](https://github.com/redis-rs/redis-rs) from 1.5.0 to 1.6.0.
- [Release notes](https://github.com/redis-rs/redis-rs/releases)
- [Commits](redis-rs/redis-rs@redis-1.5.0...redis-1.6.0)

---
updated-dependencies:
- dependency-name: redis
  dependency-version: 1.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]