chore(deps): update redis docker tag to v22

Author: renovate[bot]

charts/docker-mailserver/Chart.yaml

@@ -20,7 +20,7 @@ maintainers:
 - name: jeboehm
 dependencies:
 - name: redis
-  version: 20.13.4
+  version: 22.0.4
   repository: oci://registry-1.docker.io/bitnamicharts
   condition: redis.enabled
 - name: mariadb