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

Change-Id: I2f218a19be6f8809c396399e48e2d5ed6b3f6fd9

HACKING.rst

@@ -1,4 +1,4 @@
 oslo.upgradecheck Style Commandments
-======================================================
+====================================
 
 Read the OpenStack Style Commandments https://docs.openstack.org/hacking/latest/

README.rst

@@ -1,6 +1,6 @@
-===================================
+=================
 oslo.upgradecheck
-===================================
+=================
 
 Common code for writing OpenStack upgrade checks
 
@@ -11,5 +11,5 @@ integrating that code into a project.
 
 * Free software: Apache license
 * Documentation: https://docs.openstack.org/oslo.upgradecheck/latest/
-* Source: https://git.openstack.org/cgit/openstack/oslo.upgradecheck
+* Source: https://opendev.org/openstack/oslo.upgradecheck
 * Bugs: https://bugs.launchpad.net/oslo.upgradecheck

doc/source/index.rst

@@ -1,6 +1,6 @@
-===================
- oslo.upgradecheck
-===================
+=================
+oslo.upgradecheck
+=================
 
 Common code for writing OpenStack upgrade checks.
 

tox.ini

@@ -12,7 +12,7 @@ setenv =
    OS_STDOUT_CAPTURE=1
    OS_STDERR_CAPTURE=1
 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}/test-requirements.txt
   -r{toxinidir}/requirements.txt
 commands = stestr run --slowest {posargs}