Bump h2 from 2.1.214 to 2.2.220 in /prj/examples/guides/190-cache-stores

Bumps [h2](https://github.com/h2database/h2database) from 2.1.214 to 2.2.220.
- [Release notes](https://github.com/h2database/h2database/releases)
- [Commits](h2database/h2database@version-2.1.214...version-2.2.220)

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

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

prj/examples/guides/190-cache-stores/pom.xml

@@ -25,7 +25,7 @@
     <coherence.hibernate.cache.store.version>2.0.0</coherence.hibernate.cache.store.version>
     <hsqldb.version>2.7.1</hsqldb.version>
     <hibernate.version>5.4.27.Final</hibernate.version>
-    <h2.version>2.1.214</h2.version>
+    <h2.version>2.2.220</h2.version>
     <r2dbc-h2.version>0.9.0.RELEASE</r2dbc-h2.version>
 
     <java.version>17</java.version>