Make compatible with requests 2.29.0 and urllib3 2.0 (#613)

* Make compatible with requests 2.29.0.

* This fix should also work with urllib3 2.0 according to urllib3 maintainer.

* Add changelog fragment.

* We still need the constraint for CI until Docker SDK for Python has a new release with a fix.

* Make modifications to response_class as small as possible.

* Revert "We still need the constraint for CI until Docker SDK for Python has a new release with a fix."

This reverts commit 698d544a1e08308e8bf8b4e56ab78c5079f9a17b.

* The pip coming with the ansible-core 2.11 alpine3 image seems to be too old.

plugins/module_utils/_api/transport/sshconn.py

@@ -24,12 +24,7 @@ from ansible.module_utils.six.moves.urllib_parse import urlparse
 from .basehttpadapter import BaseHTTPAdapter
 from .. import constants
 
-if PY3:
-    import http.client as httplib
-else:
-    import httplib
-
-from .._import_helper import HTTPAdapter, urllib3
+from .._import_helper import HTTPAdapter, urllib3, urllib3_connection
 
 PARAMIKO_IMPORT_ERROR = None
 try:
@@ -120,7 +115,7 @@ class SSHSocket(socket.socket):
         self.proc.terminate()
 
 
-class SSHConnection(httplib.HTTPConnection, object):
+class SSHConnection(urllib3_connection.HTTPConnection, object):
     def __init__(self, ssh_transport=None, timeout=60, host=None):
         super(SSHConnection, self).__init__(
             'localhost', timeout=timeout