Bump org.codehaus.mojo:exec-maven-plugin from 3.1.1 to 3.2.0

Bumps [org.codehaus.mojo:exec-maven-plugin](https://github.com/mojohaus/exec-maven-plugin) from 3.1.1 to 3.2.0.
- [Release notes](https://github.com/mojohaus/exec-maven-plugin/releases)
- [Commits](mojohaus/exec-maven-plugin@3.1.1...3.2.0)

---
updated-dependencies:
- dependency-name: org.codehaus.mojo:exec-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

lib/pom.xml

@@ -50,7 +50,7 @@
         <plugin>
             <groupId>org.codehaus.mojo</groupId>
             <artifactId>exec-maven-plugin</artifactId>
-            <version>3.1.1</version>
+            <version>3.2.0</version>
             <executions>
                 <execution>
                     <phase>generate-sources</phase>