Do not use --debug for image build

Since Ansible was bumped to 2.14, we've observed the container image
build process gets stuck in the middle of ansible tasks to generate
Docker/Buildah files, because of a bug[1] with ansible-runner.

This removes --debug option from the build command to avoid -vvv option
in the ansible command, to workaround the above bug.

Same workaround is added for content-provider already[2], adding same
workaround for build-containers role.

[1] https://github.com/ansible/ansible-runner/issues/1164
[2] https://review.opendev.org/c/openstack/tripleo-quickstart-extras/+/864838

Related-Bug: #1996612
Change-Id: I498c9cac7815d3d0682835d2bf943594dad2203c

roles/build-containers/templates/tripleo-build.sh.j2

@@ -95,4 +95,8 @@ openstack tripleo container image build \
 {% if (tcib_extra_config is defined) and (release|default(branch) not  in ["train", "wallaby"]) %}
      --extra-config {{ workspace }}/extra_config.yaml \
 {% endif %}
-     --debug
+# TODO(tkajinam): With Ansible 2.14, the playbook triggered by the command
+#                 gets stuck if -vvv is set. We temporarily remove --debug
+#                 as a workaround until we find out the appropriate fix.
+#                 https://github.com/ansible/ansible-runner/issues/1164
+#     --debug