We still need the constraint for CI until Docker SDK for Python has a…

… new release with a fix.

tests/utils/constraints.txt

@@ -10,6 +10,7 @@ coverage >= 4.5.4, < 5.0.0 ; python_version > '3.7' # coverage had a bug in < 4.
 cryptography >= 1.3.0, < 2.2 ; python_version < '2.7' # cryptography 2.2 drops support for python 2.6
 cryptography >= 1.3.0, < 3.4 ; python_version < '3.6' # cryptography 3.4 drops support for python 2.7
 urllib3 < 1.24 ; python_version < '2.7' # urllib3 1.24 and later require python 2.7 or later
+urllib3 < 2.0.0 # TODO see https://github.com/ansible-collections/community.docker/issues/611
 wheel < 0.30.0 ; python_version < '2.7' # wheel 0.30.0 and later require python 2.7 or later
 paramiko < 2.4.0 ; python_version < '2.7' # paramiko 2.4.0 drops support for python 2.6
 paramiko < 3.0.0 ; python_version < '3.7' # paramiko 3.0.0 forces installation of a too new cryptography