Fix requirments for zed release

Change-Id: Ief60eb1a01d7c8dbe398f414a19ef5cbf2c7ca80

Author: wmousa

.gitreview

@@ -2,3 +2,4 @@
 host=review.opendev.org
 port=29418
 project=x/networking-mlnx.git
+defaultbranch=stable/zed

requirements.txt

@@ -16,10 +16,7 @@ oslo.config>=5.2.0 # Apache-2.0
 oslo.concurrency>=3.26.0 # Apache-2.0
 oslo.privsep>=1.32.0 # Apache-2.0
 python-openstackclient>=3.3.0 # Apache-2.0
-neutron-lib>=2.4.0 # Apache-2.0
+neutron-lib>=3.1.0 # Apache-2.0
 pyzmq
 
-# Using neutron master is necessary for neutron-db-manage test,
-# Ussuri DB branch was created in master[1] and not yet released.
-# [1] https://github.com/openstack/neutron/commit/da93f09676a6531394bf898e7292c2ae87194ce3
--e git+https://git.openstack.org/openstack/neutron#egg=neutron
+neutron>=21.0.0

tox.ini

@@ -16,7 +16,7 @@ usedevelop = True
 install_command =
   pip install {opts} {packages}
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/zed}
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/test-requirements.txt
   hacking>=3.0.1,<3.1.0 # Apache-2.0