Update test requirement

With pbr2 landed, we should update our test requirement to prevent
package conflict.
Closes-Bug: #1669276

Change-Id: I46a357b87e67ceffd3e15040349774280b8849fc

test-requirements.txt

@@ -3,13 +3,13 @@
 # process, which may cause wedges in the gate later.
 
 # Hacking already pins down pep8, pyflakes and flake8
-hacking<0.11,>=0.10.0
+hacking>=0.12.0,!=0.13.0,<0.14 # Apache-2.0
 bandit>=1.1.0 # Apache-2.0
 coverage>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 kombu>=3.0.25 # BSD
 mock>=2.0 # BSD
-mox3!=0.19.0,>=0.7.0 # Apache-2.0
+mox3>=0.7.0,!=0.19.0  # Apache-2.0
 PyMySQL>=0.7.6 # MIT License
 openstackdocstheme>=1.5.0 # Apache-2.0
 os-api-ref>=1.0.0 # Apache-2.0