Bump org.apache.maven:maven-model from 3.9.3 to 3.9.4

Bumps [org.apache.maven:maven-model](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-model
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -21,7 +21,7 @@
     <properties>
         <!-- compile library versions -->
         <joinfaces.version>4.7.12</joinfaces.version>
-        <maven-model.version>3.9.3</maven-model.version>
+        <maven-model.version>3.9.4</maven-model.version>
         <httpclient5.version>5.2.1</httpclient5.version>
 
         <!-- test library versions -->