Update python-package.yml to sue ubuntu-22.04

Author: zyxue

.github/workflows/python-package.yml

@@ -12,7 +12,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         python-version: ["3.7", "3.8", "3.9"]