Fix redundant reassignment in connection attempt loop

Removed unnecessary reassignment of 'conn' in the connection attempt loop. This change cleans up the code by ensuring 'conn' is only connected without reassigning it unnecessarily.

Signed-off-by: Jose Borreguero <borreguero@gmail.com>

src/webmonchow/amq/broadcast.py

@@ -108,7 +108,7 @@ def connect_to_broker(broker, user, password, attempts=None, interval=5.0):
     attempt_number = 0
     while attempts is None or attempt_number < attempts:
         try:
-            conn = conn.connect(user, password, wait=True)
+            conn.connect(user, password, wait=True)
             print(f"Connected to {broker}")
             return conn
         except stomp.exception.ConnectFailedException as e: