Merge pull request #390 from mitodl/renovate/ubuntu-24.x

chore(deps): update dependency ubuntu to v24

Author: jkachel

.github/workflows/ci.yml

@@ -2,7 +2,7 @@ name: CI
 on: [push]
 jobs:
   python-tests:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2