partners[lint]: run pyupgrade to get code in line with 3.9 standards (#30781)

Using `pyupgrade` to get all `partners` code up to 3.9 standards
(mostly, fixing old `typing` imports).

libs/partners/qdrant/langchain_qdrant/fastembed_sparse.py

@@ -1,4 +1,5 @@
-from typing import Any, List, Optional, Sequence
+from collections.abc import Sequence
+from typing import Any, Optional
 
 from langchain_qdrant.sparse_embeddings import SparseEmbeddings, SparseVector
 
@@ -56,7 +57,7 @@ class FastEmbedSparse(SparseEmbeddings):
             **kwargs,
         )
 
-    def embed_documents(self, texts: List[str]) -> List[SparseVector]:
+    def embed_documents(self, texts: list[str]) -> list[SparseVector]:
         results = self._model.embed(
             texts, batch_size=self._batch_size, parallel=self._parallel
         )