Bump org.apache.maven.plugins:maven-plugin-plugin from 3.6.4 to 3.15.0

Bumps [org.apache.maven.plugins:maven-plugin-plugin](https://github.com/apache/maven-plugin-tools) from 3.6.4 to 3.15.0.
- [Release notes](https://github.com/apache/maven-plugin-tools/releases)
- [Commits](apache/maven-plugin-tools@maven-plugin-tools-3.6.4...maven-plugin-tools-3.15.0)

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

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

tools/maven-plugin/pom.xml

@@ -76,7 +76,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-plugin-plugin</artifactId>
-                <version>3.6.4</version>
+                <version>3.15.0</version>
                 <configuration>
                     <goalPrefix>smallrye-graphql</goalPrefix>
                 </configuration>