Replace git.openstack.org URLs with opendev.org URLs

Change-Id: I06dfee32f6cf0a232a49901109b6b794f845c2fd
Closes-Bug: #1826699

README.rst

@@ -14,5 +14,5 @@ Library for managing machines with Dell iDRAC cards.
 
 * Free software: Apache license
 * Documentation: https://docs.openstack.org/python-dracclient/latest
-* Source: http://git.openstack.org/cgit/openstack/python-dracclient
+* Source: http://opendev.org/openstack/python-dracclient
 * Bugs: https://bugs.launchpad.net/python-dracclient

tox.ini

@@ -3,7 +3,7 @@ envlist = py35,py27,pep8
 
 [testenv]
 usedevelop = True
-install_command = pip install -U -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
+install_command = pip install -U -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt} {opts} {packages}
 deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/test-requirements.txt
@@ -23,7 +23,7 @@ commands =
 
 [testenv:docs]
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
+  -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt}
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/doc/requirements.txt
 commands = python setup.py build_sphinx