Bump maven-shade-plugin from 3.2.0 to 3.2.1

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

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

Author: dependabot-support

pom.xml

@@ -34,7 +34,7 @@
         <!-- test dependencies -->
         <test.junit.version>4.12</test.junit.version>
         <!-- Plugins -->
-        <plugin.shade.version>3.2.0</plugin.shade.version>
+        <plugin.shade.version>3.2.1</plugin.shade.version>
         <plugin.javadoc.version>3.0.1</plugin.javadoc.version>
         <plugin.jar.version>3.1.0</plugin.jar.version>
         <plugin.resources.version>3.1.0</plugin.resources.version>