Bump org.codehaus.mojo:flatten-maven-plugin from 1.5.0 to 1.6.0 (#657)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -67,7 +67,7 @@
 		<maven-javadoc-plugin.version>3.6.3</maven-javadoc-plugin.version>
 		<dokka-maven-plugin.version>1.9.10</dokka-maven-plugin.version>
 		<maven-source-plugin.version>3.3.0</maven-source-plugin.version>
-		<flatten-maven-plugin.version>1.5.0</flatten-maven-plugin.version>
+		<flatten-maven-plugin.version>1.6.0</flatten-maven-plugin.version>
 		<maven-install-plugin.version>3.1.1</maven-install-plugin.version>
 		<maven-site-plugin.version>3.12.1</maven-site-plugin.version>
 		<maven-assembly-plugin.version>3.6.0</maven-assembly-plugin.version>