Replace git.openstack.org with opendev.org

This patch replaces git.openstack.org with opendev.org as redirection
from old path was enabled.
Also we change upper constraints url due to [1]

[1] http://lists.openstack.org/pipermail/openstack-discuss/2019-May/006478.html

Change-Id: I37cc2ee6c2a10c5ac26fd0fe845a1006395423e0

defaults/main.yml

@@ -34,9 +34,9 @@ mistral_package_state: latest
 mistral_role_project_group: mistral_all
 
 # Source package builds
-mistral_git_repo: https://git.openstack.org/openstack/mistral
+mistral_git_repo: https://opendev.org/openstack/mistral
 mistral_git_install_branch: master
-mistral_upper_constraints_url: "{{ requirements_git_url | default('https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?h=' ~ requirements_git_install_branch | default('master')) }}"
+mistral_upper_constraints_url: "{{ requirements_git_url | default('https://releases.openstack.org/constraints/upper/' ~ requirements_git_install_branch | default('master')) }}"
 mistral_git_constraints:
   - "git+{{ mistral_git_repo }}@{{ mistral_git_install_branch }}#egg=mistral"
   - "--constraint {{ mistral_upper_constraints_url }}"

releasenotes/source/conf.py

@@ -64,7 +64,7 @@ title = 'OpenStack-Ansible Release Notes: ' + role_name + 'role'
 
 # The link to the browsable source code (for the left hand menu)
 oslosphinx_cgit_link = (
-    'https://git.openstack.org/cgit/openstack/{}'.format(target_name)
+    'https://opendev.org/openstack/{}'.format(target_name)
 )
 
 # Release notes do not need a version number in the title, they

tests/os_mistral-overrides.yml

@@ -25,7 +25,7 @@ mistral_service_adminurl: "{{ mistral_service_publicurl }}"
 tempest_run: yes
 tempest_plugins:
   - name: mistral-tempest-plugin
-    repo: https://git.openstack.org/openstack/mistral-tempest-plugin
+    repo: https://opendev.org/openstack/mistral-tempest-plugin
     branch: master
 tempest_test_whitelist:
   - mistral_tempest_tests.tests.api