Bump hsqldb from 2.3.1 to 2.7.1 in /tests/base

Bumps hsqldb from 2.3.1 to 2.7.1.

---
updated-dependencies:
- dependency-name: org.hsqldb:hsqldb
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

tests/base/pom.xml

@@ -787,7 +787,7 @@
         <dependency>
             <groupId>org.hsqldb</groupId>
             <artifactId>hsqldb</artifactId>
-            <version>2.3.1</version>
+            <version>2.7.1</version>
             <scope>test</scope>
         </dependency>
     </dependencies>