fix: modello-maven-plugin/src/it/maven-model/pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGCODEHAUSPLEXUS-31522

Author: snyk-bot

modello-maven-plugin/src/it/maven-model/pom.xml

@@ -44,7 +44,7 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-utils</artifactId>
-      <version>3.0.13</version>
+      <version>3.0.16</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>