Bump runner to ubuntu-24.04

Author: jdeppe-pivotal

.github/workflows/release.yaml

@@ -12,7 +12,7 @@ concurrency:
 
 jobs:
   release:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - name: Checkout
       uses: actions/checkout@v4