Bump org.codehaus.mojo:exec-maven-plugin from 3.3.0 to 3.4.0

Bumps [org.codehaus.mojo:exec-maven-plugin](https://github.com/mojohaus/exec-maven-plugin) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/mojohaus/exec-maven-plugin/releases)
- [Commits](mojohaus/exec-maven-plugin@3.3.0...3.4.0)

---
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] <[email protected]>

pom.xml

@@ -21,7 +21,7 @@
         <maven.compiler.target>1.6</maven.compiler.target>
         <rxjava.version>1.3.8</rxjava.version>
         <jmh.version>1.37</jmh.version>
-        <exec.version>3.3.0</exec.version>
+        <exec.version>3.4.0</exec.version>
         <slf4j.version>1.7.36</slf4j.version>
 
         <findbugs.version>2.5.4</findbugs.version>