Bump h2 from 1.4.194 to 2.1.210 in /code

Bumps [h2](https://github.com/h2database/h2database) from 1.4.194 to 2.1.210.
- [Release notes](https://github.com/h2database/h2database/releases)
- [Commits](https://github.com/h2database/h2database/compare/version-1.4.194...version-2.1.210)

---
updated-dependencies:
- dependency-name: com.h2database:h2
  dependency-type: direct:development
...

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

code/pom.xml

@@ -42,7 +42,7 @@
 			<groupId>com.h2database</groupId>
 			<artifactId>h2</artifactId>
 			<scope>test</scope>
-			<version>1.4.194</version>
+			<version>2.1.210</version>
 		</dependency>
 		<dependency>
 			<groupId>com.google.guava</groupId>