Switch to Black 2025 and isort 6 (#2779) (#2789)

* Switch to Black 2025 code style

* Run format with isort 6

(cherry picked from commit 68f8012)

Author: pquentin

elasticsearch/helpers/vectorstore/_sync/vectorstore.py

@@ -22,7 +22,10 @@
 from elasticsearch import Elasticsearch
 from elasticsearch._version import __versionstr__ as lib_version
 from elasticsearch.helpers import BulkIndexError, bulk
-from elasticsearch.helpers.vectorstore import EmbeddingService, RetrievalStrategy
+from elasticsearch.helpers.vectorstore import (
+    EmbeddingService,
+    RetrievalStrategy,
+)
 from elasticsearch.helpers.vectorstore._utils import maximal_marginal_relevance
 
 logger = logging.getLogger(__name__)

noxfile.py

@@ -67,7 +67,7 @@ def test_otel(session):
 
 @nox.session()
 def format(session):
-    session.install("black~=24.0", "isort", "flynt", "unasync>=0.6.0")
+    session.install("black~=25.0", "isort~=6.0", "flynt", "unasync>=0.6.0", "jinja2")
 
     session.run("python", "utils/run-unasync.py")
     session.run("isort", "--profile=black", *SOURCE_FILES)