Update postgres Docker tag from 16.2 to v16.3 (docker-compose.yml) (#10177)

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

Author: renovate[bot]

docker-compose.yml

@@ -137,7 +137,7 @@ services:
     volumes:
       - defectdojo_data:/var/lib/mysql
   postgres:
-    image: postgres:16.2-alpine@sha256:951bfda460300925caa3949eaa092ba022e9aec191bbea9056a39e2382260b27
+    image: postgres:16.3-alpine@sha256:7f7832dfb7770c7256fe3f8c4cb57617caee45e2494cc0a736594135237ed9bf
     profiles: 
       - postgres-rabbitmq
       - postgres-redis