add proxy argument in open_connections() (#42)

Co-Authored-By: Jeff Thibault <jdthibault2@gmail.com>

nostr/relay_manager.py

@@ -35,11 +35,11 @@ class RelayManager:
         for relay in self.relays.values():
             relay.close_subscription(id)
 
-    def open_connections(self, ssl_options: dict=None):
+    def open_connections(self, ssl_options: dict=None, proxy: dict= None):
         for relay in self.relays.values():
             threading.Thread(
                 target=relay.connect,
-                args=(ssl_options,),
+                args=(ssl_options, proxy),
                 name=f"{relay.url}-thread"
             ).start()