Bump org.apache.maven:maven-compat from 3.9.3 to 3.9.4 (#592)

Bumps [org.apache.maven:maven-compat](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-compat
  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

@@ -24,7 +24,7 @@ dependencies {
     testImplementation 'io.takari.maven.plugins:takari-plugin-testing:3.0.1'
     testImplementation 'io.takari.maven.plugins:takari-plugin-integration-testing:3.0.1'
     testImplementation 'org.assertj:assertj-core:3.24.2'
-    testRuntimeOnly 'org.apache.maven:maven-compat:3.9.3'
+    testRuntimeOnly 'org.apache.maven:maven-compat:3.9.4'
     testRuntimeOnly 'org.apache.maven:maven-core:3.9.3'
 }