[releng] Update to the latest eclipse-jarsigner-plugin

Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>
Change-Id: Ifbc088c44f10d68437b28809ef96f6f63e7da8ca
diff --git a/org.eclipse.gmf.runtime.releng/pom.xml b/org.eclipse.gmf.runtime.releng/pom.xml
index b09f69a..2dec835 100644
--- a/org.eclipse.gmf.runtime.releng/pom.xml
+++ b/org.eclipse.gmf.runtime.releng/pom.xml
@@ -12,7 +12,7 @@
 	<!-- this is the parent POM from which all modules inherit common settings -->
 	<properties>
 		<tycho-version>1.7.0</tycho-version>
-		<cbi-plugins.version>1.1.7</cbi-plugins.version>
+		<cbi-plugins.version>1.3.1</cbi-plugins.version>
 		<antrun-version>1.8</antrun-version>
 		<maven.test.failure.ignore>true</maven.test.failure.ignore>
 		<platform>oxygen</platform>