Bump github.com/gomodule/redigo from 1.8.9 to 1.9.1

Bumps [github.com/gomodule/redigo](https://github.com/gomodule/redigo) from 1.8.9 to 1.9.1.
- [Release notes](https://github.com/gomodule/redigo/releases)
- [Changelog](https://github.com/gomodule/redigo/blob/master/.goreleaser.yaml)
- [Commits](gomodule/redigo@v1.8.9...v1.9.1)

---
updated-dependencies:
- dependency-name: github.com/gomodule/redigo
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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