feat: add gemma3_text attention handling for lora kernels (#3103)

src/axolotl/monkeypatch/lora_kernels.py

@@ -149,6 +149,11 @@ def get_attention_cls_from_config(cfg: DictDefault) -> Type[nn.Module]:
 
         return MistralAttention
 
+    if model_type == "gemma3_text":
+        from transformers.models.gemma3.modeling_gemma3 import Gemma3Attention
+
+        return Gemma3Attention
+
     try:
         # Dynamically import the module and attention class
         module_path = f"transformers.models.{model_type}.modeling_{model_type}"