Update dependency org.junit.jupiter:junit-jupiter to v5.12.0

Author: renovate[bot]

pom.xml

@@ -22,7 +22,7 @@
 	<url>https://github.com/ashley-taylor/graphql-builder</url>
 
 	<properties>
-		<junit.jupiter.version>5.11.2</junit.jupiter.version>
+		<junit.jupiter.version>5.12.0</junit.jupiter.version>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<jackson.version>2.18.0</jackson.version>
 		<pitest.version>1.17.0</pitest.version>