Bump repository-utils from 1.4.0 to 1.6.0

Bumps repository-utils from 1.4.0 to 1.6.0.

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

com.basistech.m2e.code.quality.site/pom.xml

@@ -20,7 +20,7 @@
 			<plugin>
 				<groupId>org.jboss.tools.tycho-plugins</groupId>
 				<artifactId>repository-utils</artifactId>
-				<version>1.4.0</version>
+				<version>1.6.0</version>
 				<executions>
 					<!-- creates index.html and other artifacts -->
 					<!-- see https://github.com/jbosstools/jbosstools-maven-plugins/wiki -->