chore(deps): update valkey/valkey docker tag from 7.2.11 to v9 (docker-compose.yml)

Author: renovate[bot]

docker-compose.yml

@@ -128,7 +128,7 @@ services:
     volumes:
       - defectdojo_postgres:/var/lib/postgresql/data
   valkey:
-    image: valkey/valkey:7.2.11-alpine@sha256:7b2019b47ad58be661fa6eba5ea66106eadde03459387113aaed29a464a5876b
+    image: valkey/valkey:9.0.0-alpine@sha256:b4ee67d73e00393e712accc72cfd7003b87d0fcd63f0eba798b23251bfc9c394
     volumes:
       # we keep using the redis volume as renaming is not possible and copying data over
       # would require steps during downtime or complex commands in the intializer