fix: Update the API call address for the text_embedding model (#12342)

Co-authored-by: 方程 <fangcheng@oschina.cn>

api/core/model_runtime/model_providers/gitee_ai/text_embedding/text_embedding.py

@@ -24,8 +24,5 @@ class GiteeAIEmbeddingModel(OAICompatEmbeddingModel):
         super().validate_credentials(model, credentials)
 
     @staticmethod
-    def _add_custom_parameters(credentials: dict, model: Optional[str]) -> None:
-        if model is None:
-            model = "bge-m3"
-
-        credentials["endpoint_url"] = f"https://ai.gitee.com/api/serverless/{model}/v1/"
+    def _add_custom_parameters(credentials: dict, model: str) -> None:
+        credentials["endpoint_url"] = "https://ai.gitee.com/v1"