remove hardcode of runner ubuntu version

Author: jeffjennings

.github/workflows/package.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   deploy:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     if: (github.repository == 'astropy/repo_stats')
 
     steps:
@@ -40,4 +40,4 @@ jobs:
         uses: pypa/gh-action-pypi-publish@76f52bc884231f62b9a034ebfe128415bbaabdfc  # v1.12.4
         with:
           user: __token__
-          password: ${{ secrets.pypi_password }}
+          password: ${{ secrets.pypi_password }}