Update arm64 image to ubuntu-24.04

Change-Id: I567187ac688a51b4a3dd68e160756db42d692dc4
diff --git a/packer_aarch64.json b/packer_aarch64.json
index 8d8f552..0929968 100644
--- a/packer_aarch64.json
+++ b/packer_aarch64.json
@@ -9,14 +9,14 @@
   "builders": [
     {
       "type": "amazon-ebs",
-      "name": "ubuntu-20.04-mbedtls",
+      "name": "ubuntu-24.04-mbedtls",
       "vpc_id":  "{{user `vpc_id`}}",
       "subnet_id": "{{user `subnet_id`}}",
       "region": "{{user `vpc_region`}}",
       "source_ami_filter": {
         "filters": {
           "virtualization-type": "hvm",
-          "name": "ubuntu/images/*ubuntu-focal-20.04-arm64-server-*",
+          "name": "ubuntu/images/*ubuntu-noble-24.04-arm64-server-*",
           "root-device-type": "ebs"
         },
         "owners": ["099720109477"],