remove docker compose file 3.2 Volume LONG SYNTAX

docker-compose.yml

@@ -1,4 +1,4 @@
-version: '3.2'
+version: '3.1'
 
 volumes:
     prometheus_data: {}
@@ -39,15 +39,9 @@ services:
   node-exporter:
     image: prom/node-exporter
     volumes:
-      - type: bind
-        source: /proc
-        target: /host/proc
-      - type: bind
-        source: /sys
-        target: /host/sys
-      - type: bind
-        source: /
-        target: /rootfs
+      - /proc:/host/proc
+      - /sys:/host/sys
+      - /:/rootfs
     command: 
       - '--path.procfs=/host/proc' 
       - '--path.sysfs=/host/sys'