bitbake: bitbake: fix deprecated threading.Thread.setDaemon

Deprecated in Python 3.10:
https://docs.python.org/3/whatsnew/3.10.html#deprecated
https://github.com/python/cpython/pull/25174

Fixes warnings like:

...bitbake/lib/bb/ui/uievent.py:68: DeprecationWarning: setDaemon() is
deprecated, set the daemon attribute instead
  self.t.setDaemon(True)

(Bitbake rev: 323f6ce27a1bfd7159e72f29684674ff495dedee)

Signed-off-by: Tim Orling <tim.orling@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/taskexp.py

@@ -177,7 +177,7 @@ class gtkthread(threading.Thread):
     quit = threading.Event()
     def __init__(self, shutdown):
         threading.Thread.__init__(self)
-        self.setDaemon(True)
+        self.daemon = True
         self.shutdown = shutdown
         if not Gtk.init_check()[0]:
             sys.stderr.write("Gtk+ init failed. Make sure DISPLAY variable is set.\n")

bitbake/lib/bb/ui/uievent.py

@@ -65,7 +65,7 @@ class BBUIEventQueue:
         self.server = server
 
         self.t = threading.Thread()
-        self.t.setDaemon(True)
+        self.t.daemon = True
         self.t.run = self.startCallbackHandler
         self.t.start()
 

bitbake/lib/toaster/orm/management/commands/lsupdates.py

@@ -40,7 +40,7 @@ class Spinner(threading.Thread):
     """ A simple progress spinner to indicate download/parsing is happening"""
     def __init__(self, *args, **kwargs):
         super(Spinner, self).__init__(*args, **kwargs)
-        self.setDaemon(True)
+        self.daemon = True
         self.signal = True
 
     def run(self):

bitbake/lib/toaster/tests/commands/test_runbuilds.py

@@ -24,7 +24,7 @@ class KillRunbuilds(threading.Thread):
     """ Kill the runbuilds process after an amount of time """
     def __init__(self, *args, **kwargs):
         super(KillRunbuilds, self).__init__(*args, **kwargs)
-        self.setDaemon(True)
+        self.daemon = True
 
     def run(self):
         time.sleep(5)