Updated edx-rest-api-client to 1.7.1

https://github.com/edx/edx-rest-api-client/compare/1.6.0...1.7.1

ECOM-6634

lms/djangoapps/commerce/tests/__init__.py

@@ -72,6 +72,7 @@ class EdxRestApiClientTest(TestCase):
             'full_name': self.user.profile.name,
             'email': self.user.email,
             'iss': settings.JWT_AUTH['JWT_ISSUER'],
+            'iat': datetime.datetime.utcnow(),
             'exp': datetime.datetime.utcnow() + datetime.timedelta(seconds=settings.JWT_AUTH['JWT_EXPIRATION']),
             'tracking_context': {
                 'lms_user_id': self.user.id,  # pylint: disable=no-member

requirements/edx/base.txt

@@ -52,7 +52,7 @@ edx-enterprise==0.9.0
 edx-oauth2-provider==1.2.0
 edx-opaque-keys==0.4.0
 edx-organizations==0.4.2
-edx-rest-api-client==1.6.0
+edx-rest-api-client==1.7.1
 edx-search==0.1.2
 facebook-sdk==0.4.0
 feedparser==5.1.3