Add back patch for TLSv1.3 pure PSK

tests/ci/integration/python_patch/main/aws-lc-cpython.patch

@@ -27,6 +27,23 @@ index 0e50d09..f4b7b3c 100644
      def test_dh_params(self):
          # Check we can get a connection with ephemeral Diffie-Hellman
          client_context, server_context, hostname = testing_context()
+@@ -4443,14 +4445,14 @@ def server_callback(identity):
+             self.assertEqual(identity, client_identity)
+             return psk
+
+-        client_context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
++        client_context, server_context, _ = testing_context()
++
+         client_context.check_hostname = False
+         client_context.verify_mode = ssl.CERT_NONE
+         client_context.minimum_version = ssl.TLSVersion.TLSv1_3
+         client_context.set_ciphers('PSK')
+         client_context.set_psk_client_callback(client_callback)
+
+-        server_context = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
+         server_context.minimum_version = ssl.TLSVersion.TLSv1_3
+         server_context.set_ciphers('PSK')
+         server_context.set_psk_server_callback(server_callback, identity_hint)
 diff --git a/Modules/Setup b/Modules/Setup
 index cd1cf24..53bcc4c 100644
 --- a/Modules/Setup