Skip GGUF-ified models

Perhaps in the future we'll have to make this stricter, e.g. skipping only GGUF models that don't also have pytorch models?

refresh.py

@@ -357,6 +357,8 @@ def get_mteb_data(
     for model in pbar:
         if model.modelId in MODELS_TO_SKIP:
             continue
+        if "gguf" in model.tags:
+            continue
         pbar.set_description(f"Fetching {model.modelId!r} metadata")
         meta = download_or_use_cache(model.modelId)
         MODEL_INFOS[model.modelId] = {"metadata": meta}