update pypi workflow

Author: robkooper

.github/workflows/pypi.yaml

@@ -10,10 +10,10 @@ on:
 jobs:
   publish:
     name: Build and publish python packages
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: get release info
         id: release_info