Bump org.apache.maven:maven-plugin-api from 3.9.8 to 3.9.9 in /examples

Bumps [org.apache.maven:maven-plugin-api](https://github.com/apache/maven) from 3.9.8 to 3.9.9.
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.9.8...maven-3.9.9)

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

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

Author: dependabot[bot]

examples/test-maven-plugin/build.gradle

@@ -6,7 +6,7 @@ plugins {
 dependencies {
     api 'org.apache.maven:maven-core:3.9.9'
     api 'org.apache.maven:maven-model:3.9.9'
-    api 'org.apache.maven:maven-plugin-api:3.9.8'
+    api 'org.apache.maven:maven-plugin-api:3.9.9'
 
     compileOnly 'org.apache.maven.plugin-tools:maven-plugin-annotations:3.13.1'
 }