resource warning

[TemporalClepsydra]

Describe the bug
I ran the code exactly as the example in the example given, and it did not error but it gave this warning:
ResourceWarning: subprocess 28540 is still running

To Reproduce
Steps to reproduce the behavior:

1. Run the given code in a python shell
2. enable tracemalloc (tracemalloc.start()) before running to get the full warning
   code:

from winotify import Notification

toast = Notification(app_id="windows app",
                     title="Winotify Test Toast",
                     msg="New Notification!",
                     icon=r"c:\path\to\icon.png")

toast.show()

Expected behavior
It functioned exactly as expected expect for the warning.

Screenshots
Full warning traceback:

C:\Users\Kinder.DESKTOP-7ADK3IR\AppData\Local\Programs\Python\Python311\Lib\subprocess.py:1125: ResourceWarning: subprocess 28540 is still running
  _warn("subprocess %s is still running" % self.pid,

Desktop (please complete the following information):

• Windows 11 Version 10.0.22621 N/A Build 22621
• Windows Powershell Version [e.g. 5.1.22621.1778]

Additional context
Python version:

[ton77v]

I'm getting the same warnings for every notification I send from a function running not on the main thread. When it's from main - it all works fine for me