build(deps): bump hibernate.version from 5.4.30.Final to 5.4.31.Final

Bumps `hibernate.version` from 5.4.30.Final to 5.4.31.Final.

Updates `hibernate-core` from 5.4.30.Final to 5.4.31.Final
- [Release notes](https://github.com/hibernate/hibernate-orm/releases)
- [Changelog](https://github.com/hibernate/hibernate-orm/blob/5.4.31/changelog.txt)
- [Commits](hibernate/hibernate-orm@5.4.30...5.4.31)

Updates `hibernate-entitymanager` from 5.4.30.Final to 5.4.31.Final
- [Release notes](https://github.com/hibernate/hibernate-orm/releases)
- [Changelog](https://github.com/hibernate/hibernate-orm/blob/5.4.31/changelog.txt)
- [Commits](hibernate/hibernate-orm@5.4.30...5.4.31)

Updates `hibernate-tools` from 5.4.30.Final to 5.4.31.Final
- [Release notes](https://github.com/hibernate/hibernate-tools/releases)
- [Commits](https://github.com/hibernate/hibernate-tools/commits/5.4.31.Final)

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -10,7 +10,7 @@
     	<java.version>11</java.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <model.version>2.0.35</model.version> <!-- https://github.com/orgs/elimu-ai/packages?repo_name=model -->
-        <hibernate.version>5.4.30.Final</hibernate.version> <!-- https://repo.maven.apache.org/maven2/org/hibernate/ -->
+        <hibernate.version>5.4.31.Final</hibernate.version> <!-- https://repo.maven.apache.org/maven2/org/hibernate/ -->
         <jetty.version>9.4.31.v20200723</jetty.version> <!-- https://repo.maven.apache.org/maven2/org/eclipse/jetty/ -->
         <spring.version>5.3.6</spring.version> <!-- https://repo.maven.apache.org/maven2/org/springframework/ -->
         <spring.security.version>5.4.6</spring.security.version> <!-- https://repo.maven.apache.org/maven2/org/springframework/security/ -->