feat: add openai gpt-5 benchmark

Author: S1M0N38

data/benchmarks/v0.8.1/default/leaderboard.json

@@ -1,6 +1,60 @@
 {
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+  "generated_at": 1757527431,
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+      "config": {
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+        "strategy": "default",
+        "deck": "Red Deck",
+        "stake": 1,
+        "seed": "OOOO155",
+        "challenge": null,
+        "version": "0.8.2",
+        "name": "Unknown Name",
+        "description": "Unknown Description",
+        "author": "BalatroBench",
+        "tags": []
+      }
+    },
     {
       "runs": 17,
       "wins": 0,