[FEATURE] update zbus to 5.x.x

[w-lfchen]

Description of the requested feature

tracking issue for updating zbus to 5.x.x (5.0.0 is the latest version at the time of writing this)
71ba502 introduced a regression that has been fixed by reverting the update. obviously, this needs to be avoided.

the following script by @netboy3 can be used for testing:

import pystray
import threading
import time
from PIL import Image

def update_icon():
  img1 = Image.new("RGB", (32, 32), (0, 255, 0))
  img2 = Image.new("RGB", (32, 32), (255, 0, 0))
  while True:
    icon.icon = img1
    time.sleep(1)
    icon.icon = img2
    time.sleep(1)

if __name__ == "__main__":
  icon = pystray.Icon("testicon")
  thread = threading.Thread(target=update_icon)
  thread.start()
  icon.run()

Proposed configuration syntax

No response

Additional context

No response