update builder image to ubuntu-24.04

Author: singler

.github/workflows/build-push-fdb-exporter.yaml

@@ -15,7 +15,7 @@ env:
 jobs:
   build-image:
     name: Build and Push image
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     steps:
       - name: Checkout repository