pom.xml: update Liquibase to 3.5.5

Changelog:
- http://www.liquibase.org/2018/03/liquibase-3-5-5-released.html

No functional changes.

Author: php-coder

pom.xml

@@ -535,7 +535,7 @@
 		<license.plugin.version>3.0</license.plugin.version>
 
 		<!-- Redefine default value from spring-boot-dependencies (https://github.com/spring-projects/spring-boot/blob/v1.5.13.RELEASE/spring-boot-dependencies/pom.xml) -->
-		<liquibase.version>3.5.3</liquibase.version>
+		<liquibase.version>3.5.5</liquibase.version>
 
 		<!-- Redefine default value from spring-boot-dependencies (https://github.com/spring-projects/spring-boot/blob/v1.5.13.RELEASE/spring-boot-dependencies/pom.xml) -->
 		<lombok.version>1.16.18</lombok.version>