community: add SambaNova embeddings integration (#21227)

- **Description:**  SambaNova hosted embeddings integration

libs/community/tests/integration_tests/embeddings/test_sambanova.py

@@ -0,0 +1,22 @@
+"""Test SambaNova Embeddings."""
+
+from langchain_community.embeddings.sambanova import (
+    SambaStudioEmbeddings,
+)
+
+
+def test_embedding_documents() -> None:
+    """Test embeddings for documents."""
+    documents = ["foo", "bar"]
+    embedding = SambaStudioEmbeddings()
+    output = embedding.embed_documents(documents)
+    assert len(output) == 2
+    assert len(output[0]) == 1024
+
+
+def test_embedding_query() -> None:
+    """Test embeddings for query."""
+    document = "foo bar"
+    embedding = SambaStudioEmbeddings()
+    output = embedding.embed_query(document)
+    assert len(output) == 1024