Update dependency nl.jqno.equalsverifier:equalsverifier to v4

Author: renovate[bot]

showcase-quarkus-eventsourcing/pom.xml

@@ -35,7 +35,7 @@
 		<reactor-core.version>3.7.5</reactor-core.version>
 
 		<archunit.version>1.4.0</archunit.version>
-		<equalsverifier.version>3.19.4</equalsverifier.version>
+		<equalsverifier.version>4.0</equalsverifier.version>
 		<hamcrest.version>3.0</hamcrest.version>
 	</properties>