Bump maven-shade-plugin from 3.2.0 to 3.2.4 (joschi#54)

Bumps [maven-shade-plugin](https://github.com/apache/maven-shade-plugin) from 3.2.0 to 3.2.4.
- [Release notes](https://github.com/apache/maven-shade-plugin/releases)
- [Commits](apache/maven-shade-plugin@maven-shade-plugin-3.2.0...maven-shade-plugin-3.2.4)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

dropwizard-example/pom.xml

@@ -174,7 +174,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-shade-plugin</artifactId>
-                    <version>3.2.0</version>
+                    <version>3.2.4</version>
                 </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>