Bump exec-maven-plugin from 1.4.0 to 3.0.0

Bumps [exec-maven-plugin](https://github.com/mojohaus/exec-maven-plugin) from 1.4.0 to 3.0.0.
- [Release notes](https://github.com/mojohaus/exec-maven-plugin/releases)
- [Commits](mojohaus/exec-maven-plugin@exec-maven-plugin-1.4.0...exec-maven-plugin-3.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -20,7 +20,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <maven.compiler.target>1.8</maven.compiler.target>
         <jmh.version>1.33</jmh.version>
-        <exec.version>1.4.0</exec.version>
+        <exec.version>3.0.0</exec.version>
         <slf4j.version>1.7.32</slf4j.version>
         <rxjava2.version>2.2.21</rxjava2.version>