use ansible json encoding/decoding to avoid errors (ansible#47214)

tackle known issues with (de)serializing certain objects
fixes ansible#47200

bin/ansible-connection

@@ -26,6 +26,7 @@ from ansible.module_utils.six import PY3
 from ansible.module_utils.six.moves import cPickle, StringIO
 from ansible.module_utils.connection import Connection, ConnectionError, send_data, recv_data
 from ansible.module_utils.service import fork_process
+from ansible.parsing.ajson import AnsibleJSONEncoder, AnsibleJSONDecoder
 from ansible.playbook.play_context import PlayContext
 from ansible.plugins.loader import connection_loader
 from ansible.utils.path import unfrackpath, makedirs_safe
@@ -115,7 +116,7 @@ class ConnectionProcess(object):
             result['exception'] = traceback.format_exc()
         finally:
             result['messages'] = messages
-            self.fd.write(json.dumps(result))
+            self.fd.write(json.dumps(result, cls=AnsibleJSONEncoder))
             self.fd.close()
 
     def run(self):
@@ -275,7 +276,7 @@ def main():
                 else:
                     os.close(w)
                     rfd = os.fdopen(r, 'r')
-                    data = json.loads(rfd.read())
+                    data = json.loads(rfd.read(), cls=AnsibleJSONDecoder)
                     messages.extend(data.pop('messages'))
                     result.update(data)
 
@@ -306,10 +307,10 @@ def main():
     sys.stdout = saved_stdout
     if 'exception' in result:
         rc = 1
-        sys.stderr.write(json.dumps(result))
+        sys.stderr.write(json.dumps(result, cls=AnsibleJSONEncoder))
     else:
         rc = 0
-        sys.stdout.write(json.dumps(result))
+        sys.stdout.write(json.dumps(result, cls=AnsibleJSONEncoder))
 
     sys.exit(rc)