[migration] Run migration tests as daemon user

continuousintegration/orchestration/tests/migration.sh

@@ -37,7 +37,6 @@ fi
 echo
 echo "Launching grpc_dir_inject.sh on ctaeos pod"
 kubectl -n ${NAMESPACE} cp grpc_dir_inject.sh ctaeos:/root/grpc_dir_inject.sh
-kubectl -n ${NAMESPACE} exec ctaeos -- bash /root/grpc_dir_inject.sh
-kubectl -n ${NAMESPACE} exec --as="daemon" ctaeos -- bash /root/grpc_dir_inject.sh || exit 1
+kubectl -n ${NAMESPACE} exec ctaeos -- sudo -u daemon bash /root/grpc_dir_inject.sh || exit 1
 
 exit 0