Bump maven-source-plugin from 3.2.0 to 3.2.1

Bumps [maven-source-plugin](https://github.com/apache/maven-source-plugin) from 3.2.0 to 3.2.1.
- [Release notes](https://github.com/apache/maven-source-plugin/releases)
- [Commits](apache/maven-source-plugin@maven-source-plugin-3.2.0...maven-source-plugin-3.2.1)

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -163,7 +163,7 @@
         </plugin>
         <plugin>
           <artifactId>maven-source-plugin</artifactId>
-          <version>3.2.0</version>
+          <version>3.2.1</version>
         </plugin>
         <plugin>
           <artifactId>maven-javadoc-plugin</artifactId>