build(deps): bump maven-plugin-plugin from 3.7.1 to 3.8.1 (#473)

Bumps [maven-plugin-plugin](https://github.com/apache/maven-plugin-tools) from 3.7.1 to 3.8.1.
- [Release notes](https://github.com/apache/maven-plugin-tools/releases)
- [Commits](apache/maven-plugin-tools@maven-plugin-tools-3.7.1...maven-plugin-tools-3.8.1)

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

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

maven/pom.xml

@@ -56,7 +56,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-plugin-plugin</artifactId>
-          <version>3.7.1</version>
+          <version>3.8.1</version>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>