Upgrade maven-dependency-plugin 3.3.0 -> 3.4.0 (#377)

See:
- https://issues.apache.org/jira/issues/?jql=project%20%3D%20MDEP%20AND%20fixVersion%20%3E%203.3.0%20AND%20fixVersion%20%3C%3D%203.4.0%20AND%20statusCategory%20%3D%20Done%20
- apache/maven-dependency-plugin@maven-dependency-plugin-3.3.0...maven-dependency-plugin-3.4.0

pom.xml

@@ -870,16 +870,16 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-dependency-plugin</artifactId>
-                    <version>3.3.0</version>
+                    <version>3.4.0</version>
                     <configuration>
+                        <!-- XXX: Drop `ignoreAllNonTestScoped` once
+                        https://issues.apache.org/jira/browse/MNG-6058 is
+                        resolved. (See
+                        https://issues.apache.org/jira/browse/MDEP-791 for
+                        context.) -->
+                        <ignoreAllNonTestScoped>true</ignoreAllNonTestScoped>
                         <ignoreDirect>false</ignoreDirect>
                         <ignoreNonCompile>true</ignoreNonCompile>
-                        <!-- XXX: Drop/review this configuration once
-                        https://issues.apache.org/jira/browse/MDEP-791 is
-                        resolved. -->
-                        <ignoredNonTestScopedDependencies>
-                            <ignoredNonTestScopedDependency>*</ignoredNonTestScopedDependency>
-                        </ignoredNonTestScopedDependencies>
                     </configuration>
                 </plugin>
                 <plugin>