Update dependency org.codehaus.mojo:exec-maven-plugin to v3

Author: renovate[bot]

pom.xml

@@ -118,7 +118,7 @@
 				<plugin>
 					<groupId>org.codehaus.mojo</groupId>
 					<artifactId>exec-maven-plugin</artifactId>
-					<version>1.6.0</version>
+					<version>3.1.0</version>
 				</plugin>
 				<plugin>
 					<groupId>org.jacoco</groupId>