fix: restore plexus-utils dependency

Motivation:

Compilation succeeds but runtime fails.
Maven weirdness.

pom.xml

@@ -46,6 +46,7 @@
         <maven3.version>3.0</maven3.version>
         <header.basedir>${project.basedir}</header.basedir>
         <junit.version>5.10.1</junit.version>
+        <plexus-utils.version>4.0.0</plexus-utils.version>
         <gatling-enterprise-plugin-commons.version>1.9.0-M7</gatling-enterprise-plugin-commons.version>
 
         <nexus-staging-maven-plugin.version>1.6.13</nexus-staging-maven-plugin.version>
@@ -78,6 +79,11 @@
             <version>${maven3.version}</version>
             <scope>provided</scope>
         </dependency>
+        <dependency>
+            <groupId>org.codehaus.plexus</groupId>
+            <artifactId>plexus-utils</artifactId>
+            <version>${plexus-utils.version}</version>
+        </dependency>
         <dependency>
             <groupId>io.gatling</groupId>
             <artifactId>gatling-enterprise-plugin-commons</artifactId>