Update build.yml with ubuntu-24.04

Ubuntu 20.04 was deprecated: actions/runner-images#11101

Author: NuclearMonster

.github/workflows/build.yml

@@ -4,7 +4,7 @@ on: [push, pull_request]
 jobs:
   linux:
     name: Linux
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v4
     - name: Install Dependencies