Update to respect docker compose v2 (#4289)

compose.yaml

@@ -0,0 +1,9 @@
+services:
+  uptime-kuma:
+    image: louislam/uptime-kuma:1
+    volumes:
+      - ./data:/app/data
+    ports:
+      # <Host Port>:<Container Port>
+      - 3001:3001
+    restart: unless-stopped

docker/docker-compose.yml

@@ -1,15 +0,0 @@
-version: '3.8'
-
-services:
-  uptime-kuma:
-    image: louislam/uptime-kuma:1
-    container_name: uptime-kuma
-    volumes:
-      - uptime-kuma:/app/data
-    ports:
-      - "3001:3001"  # <Host Port>:<Container Port>
-    restart: always
-
-volumes:
-  uptime-kuma:
-