Fix CI ansible tests

There is an incompatibility with latest requests package on ubuntu with
ansible docker so older version is required.

An example of error is https://github.com/dogtagpki/pki/actions/runs/9215527346/job/25354301193

For details, see docker/docker-py#3256

tests/ansible/requirements.txt

@@ -3,4 +3,5 @@ ansible-lint
 jsondiff
 passlib
 PyYAML
-requests
+# New version have problem with docker API (see. https://github.com/docker/docker-py/issues/3256)
+requests<2.32