Bump libraries and fix UTC deprecation warning (#80)

* Bump libraries and fix UTC deprecation warning

* Bump 2.0.1

.github/workflows/fixclient_test_and_publish.yml

@@ -36,17 +36,16 @@ jobs:
           FIXCORE_PSK: "changeme"
         ports:
           - 8900:8900
-
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: '3.9'
           architecture: 'x64'
       - name: Restore dependency cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.cache/pypoetry
           key: $\{\{runner.os}}-poetry-$\{\{hashFiles('poetry.lock')}}

fixclient/ca.py

@@ -12,7 +12,7 @@
 from logging import Logger
 from typing import Optional, Mapping, Tuple
 import asyncio
-from datetime import timedelta, datetime
+from datetime import timedelta, datetime, timezone
 from threading import Lock, Thread, Condition, Event
 from ssl import SSLContext, create_default_context, Purpose
 import certifi
@@ -160,7 +160,7 @@ def __certificates_watcher(self) -> None:
             with self.__exit:
                 if self.__loaded.is_set():
                     cert = self.__ca_cert
-                    if isinstance(cert, Certificate) and cert.not_valid_after < datetime.utcnow() - self.__renew_before:
+                    if isinstance(cert, Certificate) and cert.not_valid_after_utc < datetime.now(timezone.utc) - self.__renew_before:
                         asyncio.run(self.reload())
                 if self.__exit.wait(60):
                     break