[chg] remove PyCGraph for python v3.1.13 windows workflow error

Author: ChunelFeng

.github/workflows/pip4win.yml

@@ -20,8 +20,7 @@ jobs:
                          "3.9",
                          "3.10",
                          "3.11",
-                         "3.12",
-                         "3.13",]
+                         "3.12",]
 
     runs-on: ${{ matrix.platform }}