fix check_inputs func in LuminaText2ImgPipeline (#10651)

Author: victolee0

src/diffusers/pipelines/lumina/pipeline_lumina.py

@@ -396,8 +396,10 @@ def check_inputs(
         prompt_attention_mask=None,
         negative_prompt_attention_mask=None,
     ):
-        if height % 8 != 0 or width % 8 != 0:
-            raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.")
+        if height % (self.vae_scale_factor * 2) != 0 or width % (self.vae_scale_factor * 2) != 0:
+            raise ValueError(
+                f"`height` and `width` have to be divisible by {self.vae_scale_factor * 2} but are {height} and {width}."
+            )
 
         if prompt is not None and prompt_embeds is not None:
             raise ValueError(