Fix pep8 issues in imports

Fixes imports grouping.

Change-Id: I038089cf2d3fc15fefa7d5bc878dad2f16756923

murano/common/engine.py

@@ -14,7 +14,6 @@
 # limitations under the License.
 
 import traceback
-
 import uuid
 
 import eventlet.debug

murano/tests/functional/engine/muranomanager.py

@@ -18,11 +18,11 @@ import random
 import socket
 import time
 import uuid
-import yaml
 
 import requests
 import testresources
 import testtools
+import yaml
 
 import murano.tests.functional.common.utils as utils
 import murano.tests.functional.engine.config as cfg

murano/tests/unit/dsl/test_agent.py

@@ -14,7 +14,6 @@
 # limitations under the License.
 
 import mock
-
 import yaql.context
 
 from murano.common import exceptions as exc