ci: update build workflow to run on ubuntu-24

Author: nicolastemciuc

.github/workflows/build.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Lint code for consistent style
         run: bundle exec rubocop -f github
   test:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix: