Replace left over Ubuntu 20.04 runner

Author: gibbs

.github/workflows/release.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   deploy:
     name: Deploy to forge
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     if: github.repository_owner == 'gibbs'
     steps:
       - uses: actions/checkout@v4