chore(deps): bump org.codehaus.mojo:exec-maven-plugin in /dhis-2

Bumps [org.codehaus.mojo:exec-maven-plugin](https://github.com/mojohaus/exec-maven-plugin) from 3.4.1 to 3.5.0.
- [Release notes](https://github.com/mojohaus/exec-maven-plugin/releases)
- [Commits](mojohaus/exec-maven-plugin@3.4.1...3.5.0)

---
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>

dhis-2/pom.xml

@@ -233,7 +233,7 @@
     <!-- Maven plugin versions -->
     <maven-surefire-plugin.version>3.5.1</maven-surefire-plugin.version>
     <maven-compiler-plugin.version>3.13.0</maven-compiler-plugin.version>
-    <maven-exec-plugin.version>3.4.1</maven-exec-plugin.version>
+    <maven-exec-plugin.version>3.5.0</maven-exec-plugin.version>
     <maven-resources-plugin.version>3.3.1</maven-resources-plugin.version>
     <maven-failsafe-plugin.version>3.5.1</maven-failsafe-plugin.version>
     <maven-javadoc-plugin.version>3.10.1</maven-javadoc-plugin.version>