chore(deps): update connectors (#408)

Author: vishwarajanand

requirements.txt

@@ -1,8 +1,8 @@
-google-cloud-alloydb-connector[asyncpg]==1.7.0
+google-cloud-alloydb-connector[asyncpg]==1.8.0
 google-cloud-storage==3.1.0
 langchain-core==0.3.41
 numpy==2.2.3; python_version > "3.9"
 numpy== 2.0.2; python_version <= "3.9"
 pgvector==0.3.6
 SQLAlchemy[asyncio]==2.0.38
-langgraph-checkpoint==2.0.19
+langgraph-checkpoint==2.0.19