Fix client certificate support

WhyNotHugo · WhyNotHugo · commit a09a5a4834a4 · 2023-09-24T12:45:10.000+02:00
Fixes: #1069
diff --git a/vdirsyncer/storage/dav.py b/vdirsyncer/storage/dav.py
@@ -390,6 +390,7 @@ def __init__(
         ssl = prepare_verify(verify, verify_fingerprint)
         if ssl:
             self._settings["ssl"] = ssl
+            ssl.load_cert_chain(*self._settings["cert"])
 
         self.useragent = useragent
         self.url = url.rstrip("/") + "/"
