Update to HSQLDB 2.3.4

Author: kazuki43zoo

pom.xml

@@ -207,7 +207,7 @@
     <dependency>
       <groupId>org.hsqldb</groupId>
       <artifactId>hsqldb</artifactId>
-      <version>2.3.3</version>
+      <version>2.3.4</version>
       <scope>test</scope>
     </dependency>
     <dependency>