pom.xml: update hibernate-validator to 5.2.5.Final

Changelog:
https://github.com/hibernate/hibernate-validator/blob/5.2.5.Final/changelog.txt

No functional changes.

Author: php-coder

pom.xml

@@ -452,7 +452,7 @@
 		<h2.version>1.4.195</h2.version>
 
 		<!-- Redefine default value from spring-boot-dependencies (https://github.com/spring-projects/spring-boot/blob/v1.4.6.RELEASE/spring-boot-dependencies/pom.xml) -->
-		<hibernate-validator.version>5.2.4.Final</hibernate-validator.version>
+		<hibernate-validator.version>5.2.5.Final</hibernate-validator.version>
 
 		<!-- Redefine default value from spring-boot-dependencies (https://github.com/spring-projects/spring-boot/blob/v1.4.6.RELEASE/spring-boot-dependencies/pom.xml) -->
 		<htmlunit.version>2.21</htmlunit.version>