[SVD] fix: vae type (#6475)

fix: vae type

src/diffusers/pipelines/stable_video_diffusion/pipeline_stable_video_diffusion.py

@@ -77,7 +77,7 @@ class StableVideoDiffusionPipeline(DiffusionPipeline):
     implemented for all pipelines (downloading, saving, running on a particular device, etc.).
 
     Args:
-        vae ([`AutoencoderKL`]):
+        vae ([`AutoencoderKLTemporalDecoder`]):
             Variational Auto-Encoder (VAE) model to encode and decode images to and from latent representations.
         image_encoder ([`~transformers.CLIPVisionModelWithProjection`]):
             Frozen CLIP image-encoder ([laion/CLIP-ViT-H-14-laion2B-s32B-b79K](https://huggingface.co/laion/CLIP-ViT-H-14-laion2B-s32B-b79K)).