update

.github/workflows/amalgamate-ubuntu24.yml

diff --git a/.github/workflows/amalgamate-ubuntu24.yml b/.github/workflows/amalgamate-ubuntu24.yml
index 0755ddc..90aef9e 100644
--- a/.github/workflows/amalgamate-ubuntu24.yml
+++ b/.github/workflows/amalgamate-ubuntu24.yml
@@ -4,7 +4,7 @@
 
 jobs:
   ubuntu-build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
       - name: Compile with amalgamation