Bump org.apache.maven.plugins:maven-source-plugin from 3.3.0 to 3.3.1

Bumps [org.apache.maven.plugins:maven-source-plugin](https://github.com/apache/maven-source-plugin) from 3.3.0 to 3.3.1.
- [Commits](apache/maven-source-plugin@maven-source-plugin-3.3.0...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-patch
...

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

pom.xml

@@ -87,7 +87,7 @@
       <selenium.plugin.version>2.3</selenium.plugin.version>
       <site.plugin.version>3.12.1</site.plugin.version>
       <shade.plugin.version>3.5.3</shade.plugin.version>
-      <source.plugin.version>3.3.0</source.plugin.version>
+      <source.plugin.version>3.3.1</source.plugin.version>
       <surefire.version>3.2.5</surefire.version>
       <war.plugin.version>3.4.0</war.plugin.version>