try to get a runner with ubuntu-latest

Author: mikaelfrykholm

.github/workflows/python-package.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ["ubuntu-20.04", "ubuntu-22.04", "ubuntu-24.04"]
+        os: ["ubuntu-latest"]
     runs-on: matrix.os
     steps:
     - uses: actions/checkout@v4