Merge pull request #57 from hsluv/get-off-of-ubuntu-20-04

Get CI off of about-to-be-removed Ubuntu 20.04

Author: hartwork

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         python-version: [3.9, 3.13]  # no current need for in-between versions
     name: Run the Test Suite
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2