fix(deps): update dependency org.apache.maven:maven-plugin-api to v3.9.9 (#809)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [org.apache.maven:maven-plugin-api](https://maven.apache.org/) |
`3.9.6` -> `3.9.9` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/org.apache.maven:maven-plugin-api/3.9.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/org.apache.maven:maven-plugin-api/3.9.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/org.apache.maven:maven-plugin-api/3.9.6/3.9.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/org.apache.maven:maven-plugin-api/3.9.6/3.9.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

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experimental/maven-plugin/pom.xml

@@ -25,7 +25,7 @@
         <dependency>
             <groupId>org.apache.maven</groupId>
             <artifactId>maven-plugin-api</artifactId>
-            <version>3.9.6</version>
+            <version>3.9.9</version>
         </dependency>
         <dependency>
             <groupId>org.apache.maven.plugin-tools</groupId>