update druid version (#3146)

* replace fastsql with druid

* update druid version

pom.xml

@@ -265,7 +265,7 @@
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>druid</artifactId>
-                <version>1.2.1</version>
+                <version>1.2.2</version>
             </dependency>
             <dependency>
                 <groupId>com.lmax</groupId>