refactor: update data [skip publish]

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Author: github-actions[bot]

src/lib/assets/formats.json

@@ -813,7 +813,7 @@
   "tornadus": "ZUBL",
   "tornadustherian": "UU",
   "thundurus": "NU",
-  "thundurustherian": "RU",
+  "thundurustherian": "RUBL",
   "reshiram": "Uber",
   "zekrom": "Uber",
   "landorus": "Uber",