Cleanup: use '#' prefix for issues instead of 'T'

Match the convention from Gitea instead of Phabricator's T for tasks.

tests/python/view_layer/test_evaluation_render_settings_i.py

@@ -16,7 +16,7 @@ from view_layer_common import *
 # ############################################################
 
 class UnitTesting(ViewLayerTesting):
-    @unittest.skip("Uses the clay engine, that is removed T55454")
+    @unittest.skip("Uses the clay engine, that is removed #55454")
     def test_render_settings(self):
         """
         See if the depsgraph evaluation is correct