upgrade druid v1.2.6

pom.xml

@@ -49,7 +49,7 @@
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>druid</artifactId>
-                <version>1.2.5</version>
+                <version>1.2.6</version>
             </dependency>
             <dependency>
                 <groupId>com.google.guava</groupId>