Fix reference to JPA entity in LiquibaseAutoConfigurationTests

Closes gh-44788

Author: snicoll

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/liquibase/LiquibaseAutoConfigurationTests.java

@@ -875,7 +875,7 @@ static class CustomH2Driver extends org.h2.Driver {
 					<?xml version="1.0" encoding="UTF-8"?>
 					<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence https://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
 						<persistence-unit name="manually-configured">
-							<class>org.springframework.boot.autoconfigure.flyway.FlywayAutoConfigurationTests$City</class>
+							<class>org.springframework.boot.autoconfigure.liquibase.LiquibaseAutoConfigurationTests$City</class>
 							<exclude-unlisted-classes>true</exclude-unlisted-classes>
 						</persistence-unit>
 					</persistence>