Bump org.apache.maven:maven-plugin-api from 3.9.3 to 3.9.4 (#593)

Bumps [org.apache.maven:maven-plugin-api](https://github.com/apache/maven) from 3.9.3 to 3.9.4.
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](apache/maven@maven-3.9.3...maven-3.9.4)

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

Author: dependabot[bot]

maven-plugin/build.gradle

@@ -16,7 +16,7 @@ dependencies {
     implementation 'io.swagger.parser.v3:swagger-parser:2.0.33'
     implementation 'org.openapitools.empoa:empoa-swagger-core:2.1.0'
 
-    implementation 'org.apache.maven:maven-plugin-api:3.9.3'
+    implementation 'org.apache.maven:maven-plugin-api:3.9.4'
     compileOnly 'org.apache.maven.plugin-tools:maven-plugin-annotations:3.9.0'
 
     testImplementation 'junit:junit:4.13.2'