Upgrade jarsigner plugin

Change-Id: Ieeb4a7f63016445e6b97259a0b08c29b15161a31
diff --git a/parent/pom.xml b/parent/pom.xml
index 2d7e7e3..a2c45c0 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -63,7 +63,7 @@
 					<plugin>

 						<groupId>org.eclipse.cbi.maven.plugins</groupId>

 						<artifactId>eclipse-jarsigner-plugin</artifactId>

-						<version>1.1.5</version>

+						<version>1.3.0</version>

 						<executions>

 							<execution>

 								<id>sign</id>