build: update Liquibase to 3.8.9

Changelogs:
- https://www.liquibase.org/2020/03/liquibase-3.8.8-released.html
- https://www.liquibase.org/2020/04/liquibase-3.8.9-released.html

Fix #1288

Author: php-coder

pom.xml

@@ -595,7 +595,7 @@
 		<license.plugin.version>3.0</license.plugin.version>
 
 		<!-- Redefine default value from spring-boot-dependencies -->
-		<liquibase.version>3.8.7</liquibase.version>
+		<liquibase.version>3.8.9</liquibase.version>
 
 		<!-- Redefine default value from spring-boot-dependencies -->
 		<lombok.version>1.18.12</lombok.version>