Bump Snowflake JDBC driver dependency from 3.6.21 -> 3.6.27

modules/drivers/snowflake/project.clj

-(defproject metabase/snowflake-driver "1.0.0-SNAPSHOT-3.6.20"
+(defproject metabase/snowflake-driver "1.0.0-SNAPSHOT-3.6.27"
   :min-lein-version "2.5.0"
 
   :dependencies
-  [[net.snowflake/snowflake-jdbc "3.6.21"]]
+  [[net.snowflake/snowflake-jdbc "3.6.27"]]
 
   :profiles
   {:provided

modules/drivers/snowflake/resources/metabase-plugin.yaml

 info:
   name: Metabase Snowflake Driver
-  version: 1.0.0-SNAPSHOT-3.6.20
+  version: 1.0.0-SNAPSHOT-3.6.27
   description: Allows Metabase to connect to Snowflake databases.
 driver:
   name: snowflake