hotfix(Jenkinsfile) collect azcopy log in the job when deployment fails

Jenkinsfile

@@ -84,6 +84,16 @@ pipeline {
           }
         }
       }
+      post {
+        failure {
+          // Only collect azcopy log when the deployment fails, because it is an heavy one
+          sh '''
+          # Retrieve azcopy logs to archive them
+          cat /home/jenkins/.azcopy/*.log > azcopy.log
+          '''
+          archiveArtifacts 'azcopy.log'
+        }
+      }
     }
   }
 }