add paligemma (1,2 and 2 mix)

Author: eljandoubi

src/llamafactory/model/model_utils/liger_kernel.py

@@ -78,6 +78,8 @@ def apply_liger_kernel(
         from liger_kernel.transformers import apply_liger_kernel_to_gemma3 as apply_liger_kernel
     elif model_type == "gemma3_text":
         from liger_kernel.transformers import apply_liger_kernel_to_gemma3_text as apply_liger_kernel
+    if model_type == "paligemma":
+        from liger_kernel.transformers import apply_liger_kernel_to_paligemma as apply_liger_kernel
     elif model_type == "llama":
         from liger_kernel.transformers import apply_liger_kernel_to_llama as apply_liger_kernel
     elif model_type == "mistral":