Bump org.apache.maven.plugins:maven-source-plugin from 3.2.1 to 3.3.1

Bumps [org.apache.maven.plugins:maven-source-plugin](https://github.com/apache/maven-source-plugin) from 3.2.1 to 3.3.1.
- [Commits](apache/maven-source-plugin@maven-source-plugin-3.2.1...maven-source-plugin-3.3.1)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-source-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -27,7 +27,7 @@
         <log4j.version>2.14.1</log4j.version>
 
         <maven-javadoc-plugin.version>3.6.3</maven-javadoc-plugin.version>
-        <maven-source-plugin.version>3.2.1</maven-source-plugin.version>
+        <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
         <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
         <jacoco-maven-plugin.version>0.8.7</jacoco-maven-plugin.version>
         <pitest-maven-plugin.version>1.6.6</pitest-maven-plugin.version>