fix Idefics2VisionConfig type annotation (huggingface#33103)

* fix Idefics2VisionConfig type annotation

* Update modeling_idefics2.py

* Update modeling_idefics2.py

add ignore copy

* Update modeling_idefics2.py

* Update modeling_idefics2.py

src/transformers/models/idefics2/modeling_idefics2.py

@@ -435,7 +435,7 @@ def forward(self, hidden_state):
 
 
 class Idefics2EncoderLayer(nn.Module):
-    def __init__(self, config: Idefics2Config):
+    def __init__(self, config: Idefics2VisionConfig):
         super().__init__()
         self.embed_dim = config.hidden_size
         self.self_attn = IDEFICS_VISION_ATTENTION_CLASSES[config._attn_implementation](config)