fix(ndb): Bump pytz to 2022.1 to fix collections.Mapping ImportError on Python 3.10

Author: chalmerlowe

packages/google-cloud-ndb/setup.py

@@ -44,7 +44,7 @@ def main():
         "google-cloud-datastore >= 2.16.0, != 2.20.2, < 3.0.0",
         "protobuf >= 4.25.8, < 8.0.0",
         "pymemcache >= 2.1.0, < 5.0.0",
-        "pytz >= 2018.3",
+        "pytz >= 2022.1",
         "redis >= 3.0.0, < 8.0.0",
     ]
 

packages/google-cloud-ndb/testing/constraints-3.10.txt

@@ -10,6 +10,6 @@ google-api-core==2.11.0
 protobuf==4.25.8
 pymemcache==2.1.0
 redis==3.0.0
-pytz==2018.3
+pytz==2022.1
 # TODO(https://github.com/googleapis/python-ndb/issues/913) remove this dependency once six is no longer used in the codebase
 six==1.12.0