deps(redis): ensure we're using the same version everywhere

[ansmonjol]

Context

We use redis however we have some inconsistency in some declared versions.

Found 6 matches for redis:*-alpine:

•  docker-compose.yml:9 - redis:6-alpine                        // wrong version
•  docker-compose.dev.yml:54 - redis:7-alpine
•  deploy/docker-compose.production.yml:13 - redis:7-alpine
•  deploy/docker-compose.local.yml:12 - redis:7-alpine
•  deploy/docker-compose.light.yml:12 - redis:7-alpine
•  front/ci/docker-compose.ci.yml:19 - redis:6.2-alpine         // wrong version

Description

This PR updated the inconsistent version in this package.

Other PR can be found here: getlago/lago-front#2830