Bump org.apache.maven:maven-plugin-api from 3.8.6 to 3.9.9

Bumps [org.apache.maven:maven-plugin-api](https://github.com/apache/maven) from 3.8.6 to 3.9.9.
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.8.6...maven-3.9.9)

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

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

tools/maven-plugin/pom.xml

@@ -18,7 +18,7 @@
         <dependency>
             <groupId>org.apache.maven</groupId>
             <artifactId>maven-plugin-api</artifactId>
-            <version>3.8.6</version>
+            <version>3.9.9</version>
             <scope>provided</scope>
             <exclusions>
                 <exclusion>