ci: run centos stream 8 integration test on openstack

AWS doesn't have real KVM and it seems that booting Centos Stream image using
TCG stopped working (TCG was actually never supported on EL). Let's switch
to using OpenStack that has KVM support.

Also, I bumped the terraform repository because the older version didn't have
centos stream on OpenStack.

Signed-off-by: Ondřej Budai <ondrej@budai.cz>

.gitlab-ci.yml

@@ -145,7 +145,7 @@ Integration:
           - aws/fedora-33-x86_64
           # See COMPOSER-919
           # - aws/fedora-34-x86_64
-          - aws/centos-stream-8-x86_64
+          - openstack/centos-stream-8-x86_64
       - <<: *INTEGRATION_TESTS
         RUNNER:
           - aws/rhel-8-x86_64

schutzbot/terraform

@@ -1 +1 @@
-4b72361d15e0dbb6c70c576aa9d4c88c61e82656
+aea553f5e0659df2dd05650664a7fa124a0ee69d