feat: update fabric8 client to v6 RC1

Author: csviri

Diff for: pom.xml

@@ -40,7 +40,7 @@
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
 
         <junit.version>5.8.2</junit.version>
-        <fabric8-client.version>5.12.2</fabric8-client.version>
+        <fabric8-client.version>6.0.0-RC1</fabric8-client.version>
         <slf4j.version>1.7.32</slf4j.version>
         <log4j.version>2.17.1</log4j.version>
         <mokito.version>4.1.0</mokito.version>