fix: Fix the CI build

Author: iluwatar

metadata-mapping/pom.xml

@@ -58,6 +58,10 @@
       <groupId>com.sun.istack</groupId>
       <artifactId>istack-commons-runtime</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.h2database</groupId>
+      <artifactId>h2</artifactId>
+    </dependency>
   </dependencies>
   <build>
     <plugins>