Bump exec-maven-plugin from 1.1 to 1.6.0

Bumps [exec-maven-plugin](https://github.com/mojohaus/exec-maven-plugin) from 1.1 to 1.6.0.
- [Release notes](https://github.com/mojohaus/exec-maven-plugin/releases)
- [Commits](mojohaus/exec-maven-plugin@exec-maven-plugin-1.1...exec-maven-plugin-1.6.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

pom.xml

@@ -108,7 +108,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>exec-maven-plugin</artifactId>
-                <version>1.1</version>
+                <version>1.6.0</version>
                 <executions>
                     <execution>
                         <phase>initialize</phase>