Bump maven-assembly-plugin from 2.4 to 3.3.0 (#8)

Bumps [maven-assembly-plugin](https://github.com/apache/maven-assembly-plugin) from 2.4 to 3.3.0.
- [Release notes](https://github.com/apache/maven-assembly-plugin/releases)
- [Commits](apache/maven-assembly-plugin@maven-assembly-plugin-2.4...maven-assembly-plugin-3.3.0)

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Author: dependabot[bot]

examples/pom.xml

@@ -68,7 +68,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-assembly-plugin</artifactId>
-                <version>2.4</version>
+                <version>3.3.0</version>
                 <configuration>
                     <descriptorRefs>
                         <descriptorRef>jar-with-dependencies</descriptorRef>