ci update

Author: neka-nat

.github/workflows/ubuntu.yml

@@ -10,10 +10,10 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12"]
 
     steps:
     - name: Checkout source code

.github/workflows/windows.yml

@@ -16,10 +16,6 @@ jobs:
       matrix:
         include:
           # Windows2019 & VS 2019 supports 11.0+
-          - os: windows-2019
-            cuda: "11.2.0"
-            visual_studio: "Visual Studio 16 2019"
-            python-version: "3.9"
           - os: windows-2019
             cuda: "11.2.0"
             visual_studio: "Visual Studio 16 2019"