Upgrade sqlalchemy to 1.2.18 (#21162)

homeassistant/components/sensor/sql.py

@@ -1,9 +1,4 @@
-"""
-Sensor from an SQL Query.
-
-For more details about this platform, please refer to the documentation at
-https://home-assistant.io/components/sensor.sql/
-"""
+"""Sensor from an SQL Query."""
 import decimal
 import datetime
 import logging
@@ -20,7 +15,7 @@ from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['sqlalchemy==1.2.17']
+REQUIREMENTS = ['sqlalchemy==1.2.18']
 
 CONF_COLUMN_NAME = 'column'
 CONF_QUERIES = 'queries'