try fixing

Dockerfile.pgvector

@@ -11,7 +11,7 @@ RUN make install
 
 FROM postgres:14.4-alpine
 COPY ./src/sql/init.sql /docker-entrypoint-initdb.d/
-COPY ./src/docker/postgres/postgresql.conf /var/lib/postgresql/data/
+# COPY ./src/docker/postgres/postgresql.conf /var/lib/postgresql/data/
 COPY --from=pgvector-builder /usr/local/lib/postgresql/bitcode/vector.index.bc /usr/local/lib/postgresql/bitcode/vector.index.bc
 COPY --from=pgvector-builder /usr/local/lib/postgresql/vector.so /usr/local/lib/postgresql/vector.so
 COPY --from=pgvector-builder /usr/local/share/postgresql/extension /usr/local/share/postgresql/extension

tests/conftest.py

@@ -26,7 +26,16 @@ def event_loop() -> asyncio.AbstractEventLoop:
 @pytest.fixture(autouse=True)
 def get_engine_orm() -> AsyncEngine:
     db_url = "postgresql+asyncpg://postgres:postgres@localhost/postgres"
-    engine = create_async_engine(db_url)
+    engine = create_async_engine(
+        db_url,
+        connect_args={
+            "server_settings": {
+                "tcp_keepalives_idle": "600",
+                "tcp_keepalives_interval": "30",
+                "tcp_keepalives_count": "10",
+            }
+        },
+    )
 
     yield engine
     engine.sync_engine.dispose()