chore(deps): update redis docker tag to v8 (#21)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: ignavan39 <ivanignatenko28@gmail.com>

Author: renovate[bot]

docker-compose.yml

@@ -34,7 +34,7 @@ services:
 
   redis:
     container_name: mood-diary-redis
-    image: "redis:7-alpine"
+    image: "redis:8-alpine"
     command: redis-server --requirepass ${REDIS__PASSWORD:-password}
     volumes:
       - redis_data:/data