Bump maven-exec-plugin to 3.1.0

Author: peter-lawrey

affinity/pom.xml

@@ -120,6 +120,7 @@
                     <plugin>
                         <groupId>org.codehaus.mojo</groupId>
                         <artifactId>exec-maven-plugin</artifactId>
+                        <version>3.1.0</version>
                         <executions>
                             <execution>
                                 <!-- this execution happens just after compiling the java classes, and builds the native code. -->