fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGLIQUIBASE-2419059

Author: snyk-bot

pom.xml

@@ -556,7 +556,7 @@
             <dependency>
                 <groupId>org.liquibase</groupId>
                 <artifactId>liquibase-core</artifactId>
-                <version>4.6.1</version>
+                <version>4.8.0</version>
                 <exclusions>
                     <exclusion>
                         <groupId>org.slf4j</groupId>