Pins temporarily moto to 1.3.14 (apache#10986)

As described in apache#10985, moto upgrade causes some AWS tests to fail.
Until we fix it, we pin the version to 1.3.14.

Part of apache#10985

setup.py

@@ -456,7 +456,8 @@ def write_version(filename: str = os.path.join(*[my_dir, "airflow", "git_version
     'ipdb',
     'jira',
     'mongomock',
-    'moto>=1.3.14,<2.0.0',
+    'moto==1.3.14',  # TODO - fix Datasync issues to get higher version of moto:
+                     #        See: https://github.com/apache/airflow/issues/10985
     'parameterized',
     'paramiko',
     'pipdeptree',