[3.15] gh-146531: Broaden wm_iconbitmap skip on macOS 26 Intel (GH-153348) (#153450)

gh-146531: Broaden `wm_iconbitmap` skip on macOS 26 Intel (GH-153348)
(cherry picked from commit 6ba3ad5)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: miss-islington

Lib/test/test_tkinter/test_misc.py

@@ -984,13 +984,10 @@ def test_wm_iconbitmap(self):
             and sys.platform == 'darwin'
             and platform.machine() == 'x86_64'
             and platform.mac_ver()[0].startswith('26.')
-            and (
-                patchlevel[:3] <= (8, 6, 17)
-                or (9, 0) <= patchlevel[:3] <= (9, 0, 3)
-            )
         ):
             # https://github.com/python/cpython/issues/146531
             # Tk bug 4a2070f0d3a99aa412bc582d386d575ca2f37323
+            # Not fixed as of Tk 8.6.18 and 9.0.4.
             self.skipTest('wm iconbitmap hangs on macOS 26 Intel')
 
         self.assertEqual(t.wm_iconbitmap(), '')