fix: revert hibernate-validator upgrade #119

It broke a test, and since it's a test dependency, we can roll back.

Author: akutschera

pom.xml

@@ -92,8 +92,8 @@
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>org.hibernate.validator</groupId>
-            <version>8.0.1.Final</version>
+            <groupId>org.hibernate</groupId>
+            <version>6.2.1.Final</version>
             <artifactId>hibernate-validator</artifactId>
             <scope>test</scope>
         </dependency>