Update deps (#279)

* Update deps

* Fix some warnings

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix some warnings

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: tellet-q

.gitignore

@@ -7,4 +7,6 @@ NOTES.md
 results/*
 tools/custom/data.json
 
-ansible/playbooks/inventory.ini
+ansible/playbooks/inventory.ini
+
+.python-version

engine/clients/pgvector/configure.py

@@ -32,7 +32,8 @@ def recreate(self, dataset: Dataset, collection_params):
             );"""
         )
         self.conn.execute("ALTER TABLE items ALTER COLUMN embedding SET STORAGE PLAIN")
-        self.conn.close()
 
     def delete_client(self):
-        self.conn.close()
+        if self.conn:
+            self.conn.close()
+            self.conn = None