Disable dev mode Hibernate validation.

Change-Id: I8988c116680c7ccdcf40b41770ada30573c63ff6
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 9bdd4f4..2c21fee 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -15,6 +15,7 @@
 quarkus.datasource.jdbc.min-size = 0
 
 quarkus.hibernate-orm.metadata-builder-contributor = eu.mulk.mulkcms2.common.hibernate.HibernateMetadataBuilderContributor
+quarkus.hibernate-orm.validate-in-dev-mode = false
 
 quarkus.liquibase.migrate-at-start = true