build(deps): bump library/redis in /docker/personal/gramps

Bumps library/redis from 8.6.3-alpine to 8.8.0-alpine.

---
updated-dependencies:
- dependency-name: library/redis
  dependency-version: 8.8.0-alpine
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

docker/personal/gramps/docker-compose.yml

@@ -52,7 +52,7 @@ services:
     command: celery -A gramps_webapi.celery worker --loglevel=INFO --concurrency=2
 
   grampsweb_redis:
-    image: docker.io/library/redis:8.6.3-alpine
+    image: docker.io/library/redis:8.8.0-alpine
     container_name: grampsweb_redis
     restart: always