[docker] Update postgres Docker tag to v18 (#78)

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

Author: renovate[bot]

docker-compose.dev.yml

@@ -2,7 +2,7 @@ version: '3'
 services:
   openaev-dev-pgsql:
     container_name: openaev-dev-pgsql
-    image: postgres:17-alpine
+    image: postgres:18-alpine
     environment:
       POSTGRES_USER: ${POSTGRES_USER}
       POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}

docker-compose.yml

@@ -18,7 +18,7 @@ services:
       retries: 3
     restart: always
   pgsql:
-    image: postgres:17-alpine
+    image: postgres:18-alpine
     environment:
       POSTGRES_USER: ${POSTGRES_USER}
       POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}