Bump h2 from 2.1.210 to 2.2.220

Bumps [h2](https://github.com/h2database/h2database) from 2.1.210 to 2.2.220.
- [Release notes](https://github.com/h2database/h2database/releases)
- [Commits](https://github.com/h2database/h2database/compare/version-2.1.210...version-2.2.220

)

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

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

pom.xml

@@ -31,7 +31,7 @@
         <jquery.version>3.0.0</jquery.version>
         <bootstrap.version>3.3.7</bootstrap.version>
         <webjars-locator.version>0.36</webjars-locator.version>
-        <h2.version>2.1.210</h2.version>
+        <h2.version>2.2.220</h2.version>
         <postgresql.version>42.3.8</postgresql.version>
         <gson.version>2.8.9</gson.version>
         <slugify.version>2.1.5</slugify.version>