Fix glances GPU access using deploy resources syntax

The runtime:nvidia field wasn't being applied. Switch to deploy
resources reservations syntax (matching plex config) and add
NVIDIA_DRIVER_CAPABILITIES for NVML library access.

glances/docker-compose.yaml

@@ -1,21 +1,26 @@
-version: '3'
-
 services:
   glances:
     container_name: glances
     image: 'nicolargo/glances:latest-full'
     restart: unless-stopped
     privileged: true
-    runtime: nvidia
     ports:
       - 61208-61209:61208-61209
     environment:
       - TZ=${TZ}
       - NVIDIA_VISIBLE_DEVICES=all
+      - NVIDIA_DRIVER_CAPABILITIES=compute,utility
       - "GLANCES_OPT=-C /glances/conf/glances.conf -w"
     volumes:
       - '/var/run/docker.sock:/var/run/docker.sock:ro'
       - '/run/user/1000/podman/podman.sock:/run/user/1000/podman/podman.sock:ro'
       - /srv/glances/glances.conf:/glances/conf/glances.conf
     pid: host
+    deploy:
+      resources:
+        reservations:
+          devices:
+            - driver: nvidia
+              count: all
+              capabilities: [gpu]