Bump hibernate-jpamodelgen from 5.4.27.Final to 5.4.28.Final

Bumps [hibernate-jpamodelgen](https://github.com/hibernate/hibernate-orm) from 5.4.27.Final to 5.4.28.Final.
- [Release notes](https://github.com/hibernate/hibernate-orm/releases)
- [Changelog](https://github.com/hibernate/hibernate-orm/blob/5.4.28/changelog.txt)
- [Commits](hibernate/hibernate-orm@5.4.27...5.4.28)

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

examples/jsf/pastecode/pom.xml

@@ -16,7 +16,7 @@
 
     <properties>
         <urlrewritefilter.version>4.0.4</urlrewritefilter.version>
-        <jpamodelgen.version>5.4.27.Final</jpamodelgen.version>
+        <jpamodelgen.version>5.4.28.Final</jpamodelgen.version>
     </properties>
 
     <dependencies>