Merge branch 'debug_paas_ci' into 'main'

Enable docker pipeline

See merge request !63

jenkinsfile/Jenkinsfile

 pipeline {
-    agent { label 'docker-paas-agent' } 
+    agent { 
+        label 'docker-paas-agent' 
+        docker { image 'harbor.cloud.infn.it/cicd/jenkins-paas-slave:latest' }
+    } 
     
     environment {
         ORCHENT_AGENT_ACCOUNT='infn-cloud-ops'