Bump org.apache.maven.plugins:maven-dependency-plugin

Bumps [org.apache.maven.plugins:maven-dependency-plugin](https://github.com/apache/maven-dependency-plugin) from 3.6.1 to 3.8.1.
- [Release notes](https://github.com/apache/maven-dependency-plugin/releases)
- [Commits](https://github.com/apache/maven-dependency-plugin/compare/maven-dependency-plugin-3.6.1...maven-dependency-plugin-3.8.1)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-dependency-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

DataProcessing/datax-keyvault/pom.xml

@@ -161,7 +161,7 @@ SOFTWARE
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>
-        <version>3.6.1</version>
+        <version>3.8.1</version>
         <executions>
           <execution>
             <id>copy-dependencies</id>