Bump hibernate-core from 5.2.12.Final to 5.3.20.Final

Bumps [hibernate-core](https://github.com/hibernate/hibernate-orm) from 5.2.12.Final to 5.3.20.Final.
- [Release notes](https://github.com/hibernate/hibernate-orm/releases)
- [Changelog](https://github.com/hibernate/hibernate-orm/blob/5.3.20/changelog.txt)
- [Commits](hibernate/hibernate-orm@5.2.12...5.3.20)

---
updated-dependencies:
- dependency-name: org.hibernate:hibernate-core
  dependency-type: direct:production
...

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

pom.xml

@@ -143,7 +143,7 @@
             <dependency>
                 <groupId>org.hibernate</groupId>
                 <artifactId>hibernate-core</artifactId>
-                <version>5.2.12.Final</version>
+                <version>5.3.20.Final</version>
             </dependency>
 
             <dependency>