Fix docker tag in stage3 to coexist with periodic clean-up

Change-Id: I1ce9a5de84e0bcedd7abaecfa0fb6d753b853cb7
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>

jenkins/ci-pipelines/ci_stage_3.groovy

@@ -638,7 +638,7 @@ EOF"""
                                 parallelSteps[module] = {
                                     dir("$module") {
                                         sh("docker pull ${INTERNAL_DOCKER_REGISTRY}opensourcemano/${moduleName}:${moduleTag}")
-                                        sh("""docker tag opensourcemano/${moduleName}:${moduleTag} \
+                                        sh("""docker tag ${INTERNAL_DOCKER_REGISTRY}opensourcemano/${moduleName}:${moduleTag} \
                                            opensourcemano/${moduleName}:${dockerTag}""")
                                         sh "docker push opensourcemano/${moduleName}:${dockerTag}"
                                     }