Update postgres volume for 18+ (#2556)

Signed-off-by: J0WI <J0WI@users.noreply.github.com>

.examples/docker-compose/insecure/postgres/apache/compose.yaml

@@ -7,7 +7,7 @@ services:
     image: postgres:alpine
     restart: always
     volumes:
-      - db:/var/lib/postgresql/data:Z
+      - db:/var/lib/postgresql:Z
     env_file:
       - db.env
 

.examples/docker-compose/insecure/postgres/fpm/compose.yaml

@@ -7,7 +7,7 @@ services:
     image: postgres:alpine
     restart: always
     volumes:
-      - db:/var/lib/postgresql/data:Z
+      - db:/var/lib/postgresql:Z
     env_file:
       - db.env
 

.examples/docker-compose/with-nginx-proxy/postgres/apache/compose.yaml

@@ -7,7 +7,7 @@ services:
     image: postgres:alpine
     restart: always
     volumes:
-      - db:/var/lib/postgresql/data:Z
+      - db:/var/lib/postgresql:Z
     env_file:
       - db.env
 

.examples/docker-compose/with-nginx-proxy/postgres/fpm/compose.yaml

@@ -7,7 +7,7 @@ services:
     image: postgres:alpine
     restart: always
     volumes:
-      - db:/var/lib/postgresql/data:Z
+      - db:/var/lib/postgresql:Z
     env_file:
       - db.env