fix: correct KSamplerAdvanced parameters for AnimateDiff workflow

Fix parameter order in KSamplerAdvanced node:
- Change sampler from 'euler' to 'dpmpp_2m' (valid sampler)
- Change scheduler from 'normal' to 'karras' (valid scheduler)
- Parameters now: [enable, 42, 25, 7.5, dpmpp_2m, karras, 0, 25, enable]

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Co-Authored-By: Claude <noreply@anthropic.com>

models/comfyui/workflows/advanced/animatediff-video-production-v1.json

@@ -128,7 +128,7 @@
       "order": 7,
       "mode": 0,
       "properties": {"Node name for S&R": "KSamplerAdvanced"},
-      "widgets_values": ["enable", 42, 25, 7.5, "euler", "normal", 0, 25, "enable"],
+      "widgets_values": ["enable", 42, 25, 7.5, "dpmpp_2m", "karras", 0, 25, "enable"],
       "title": "AnimateDiff Sampler",
       "inputs": [
         {"name": "model", "type": "MODEL", "link": 7},