Account for Python 3.15 differences

Author: pushfoo

tests/unit/color/test_module_color.py

@@ -1,6 +1,13 @@
+import sys
+
+
 def test_colors():
     from arcade import color
 
     names = color.__dict__.keys()
+
+    # py3.15
+    n_extra = int(sys.version_info <= (3, 15))
+
     # number of colors + 1 real import
-    assert 1016 + 1 == len(names)
+    assert 1016 + n_extra == len(names)

tests/unit/color/test_module_csscolor.py

@@ -1,6 +1,13 @@
+import sys
+
+
 def test_csscolors():
     from arcade import csscolor
 
     names = csscolor.__dict__.keys()
+
+    # py3.15+
+    n_extra = int(sys.version_info <= (3, 15))
+
     # number of colors + 1 import
-    assert 156 + 1 == len(names)
+    assert 156 + n_extra == len(names)