fix(chaos-tests): prevent Vert.x 4/5 classpath conflict

Remove unconditional kubernetes-httpclient-vertx dependency that caused
both Vert.x 4 and Vert.x 5 HTTP clients to be on the classpath when
running with -Phttpclient-vertx-5 profile.

Add vertx.version property override in httpclient-vertx-5 profile to
ensure Vert.x 5.0.7 is used instead of parent POM's default 4.5.24.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: manusa

chaos-tests/pom.xml

@@ -57,11 +57,6 @@
         </exclusion>
       </exclusions>
     </dependency>
-    <dependency>
-      <groupId>io.fabric8</groupId>
-      <artifactId>kubernetes-httpclient-vertx</artifactId>
-      <scope>test</scope>
-    </dependency>
 
     <dependency>
         <groupId>org.slf4j</groupId>
@@ -188,6 +183,9 @@
       </profile>
       <profile>
         <id>httpclient-vertx-5</id>
+        <properties>
+          <vertx.version>5.0.7</vertx.version>
+        </properties>
         <dependencies>
           <dependency>
             <groupId>io.fabric8</groupId>