Update docker.io/redis Docker tag to v8

Author: renovate[bot]

docker/immich/compose.yaml

@@ -42,7 +42,7 @@ services:
 
   redis:
     container_name: immich_redis
-    image: docker.io/redis:7.4-alpine@sha256:02419de7eddf55aa5bcf49efb74e88fa8d931b4d77c07eff8a6b2144472b6952
+    image: docker.io/redis:8.2-alpine@sha256:28c9c4d7596949a24b183eaaab6455f8e5d55ecbf72d02ff5e2c17fe72671d31
     healthcheck:
       test: redis-cli ping || exit 1
     restart: always