correct key to 'embedding_model_provider' in docs (#19541)

web/app/(commonLayout)/datasets/template/template.en.mdx

       </Property>
       <Property name='indexing_technique' type='string' key='indexing_technique'>
         Index technique (optional)
-        If this is not set, embedding_model, embedding_provider_name and retrieval_model will be set to null
+        If this is not set, embedding_model, embedding_model_provider and retrieval_model will be set to null
           - <code>high_quality</code> High quality
           - <code>economy</code> Economy
       </Property>
       <Property name='embedding_model' type='str' key='embedding_model'>
         Embedding model name (optional)
       </Property>
-      <Property name='embedding_provider_name' type='str' key='embedding_provider_name'>
+      <Property name='embedding_model_provider' type='str' key='embedding_model_provider'>
         Embedding model provider name (optional)
       </Property>
       <Property name='retrieval_model' type='object' key='retrieval_model'>

web/app/(commonLayout)/datasets/template/template.ja.mdx

       <Property name='embedding_model' type='str' key='embedding_model'>
         埋め込みモデル名（任意）
       </Property>
-      <Property name='embedding_provider_name' type='str' key='embedding_provider_name'>
+      <Property name='embedding_model_provider' type='str' key='embedding_model_provider'>
         埋め込みモデルのプロバイダ名（任意）
       </Property>
       <Property name='retrieval_model' type='object' key='retrieval_model'>

web/app/(commonLayout)/datasets/template/template.zh.mdx

       <Property name='embedding_model' type='str' key='embedding_model'>
         Embedding 模型名称
       </Property>
-      <Property name='embedding_provider_name' type='str' key='embedding_provider_name'>
+      <Property name='embedding_model_provider' type='str' key='embedding_model_provider'>
         Embedding 模型供应商
       </Property>
       <Property name='retrieval_model' type='object' key='retrieval_model'>