Bump hibernate-validator in /AndroidDatabaseDemo/LoginBackEnd

Bumps [hibernate-validator](https://github.com/hibernate/hibernate-validator) from 6.0.13.Final to 6.0.20.Final.
- [Release notes](https://github.com/hibernate/hibernate-validator/releases)
- [Changelog](https://github.com/hibernate/hibernate-validator/blob/6.0.20.Final/changelog.txt)
- [Commits](hibernate/hibernate-validator@6.0.13.Final...6.0.20.Final)

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

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

Author: dependabot[bot]

AndroidDatabaseDemo/LoginBackEnd/pom.xml

@@ -69,7 +69,7 @@
         <dependency>
             <groupId>org.hibernate.validator</groupId>
             <artifactId>hibernate-validator</artifactId>
-            <version>6.0.13.Final</version>
+            <version>6.0.20.Final</version>
         </dependency>
 
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