update volumes in docker-compose and version

docker-compose.yml

@@ -1,4 +1,4 @@
-version: "3.2"
+version: "3.5"
 
 services:
 #mariadb Container
@@ -7,7 +7,7 @@ services:
     container_name: mariadb-glpi
     hostname: mariadb
     volumes:
-      - /var/lib/mysql:/var/lib/mysql
+      - glpi-db:/var/lib/mysql
     env_file:
       - ./mariadb.env
     restart: always
@@ -22,7 +22,11 @@ services:
     volumes:
       - /etc/timezone:/etc/timezone:ro
       - /etc/localtime:/etc/localtime:ro
-      - /var/www/html/glpi/:/var/www/html/glpi
+      - glpi-data:/var/www/html/glpi
     environment:
       - TIMEZONE=Europe/Paris
     restart: always
+    
+volumes:
+  glpi-db:
+  glpi-data: