Use Ubuntu 24.04 (#57)

Author: Godin

Diff for: .github/workflows/ci.yml

@@ -4,7 +4,7 @@ on:
   - pull_request
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4.7.1