Ubuntu focal EOL cpp image.

Author: Kaniska244

src/ubuntu/devcontainer-template.json

@@ -1,6 +1,6 @@
 {
     "id": "ubuntu",
-    "version": "1.3.2",
+    "version": "1.3.3",
     "name": "Ubuntu",
     "description": "A simple Ubuntu container with Git and other common utilities installed.",
     "documentationURL": "https://github.com/devcontainers/templates/tree/main/src/ubuntu",
@@ -12,10 +12,9 @@
             "description": "Ubuntu version (use ubuntu-22.04 or ubuntu-24.04 on local arm64/Apple Silicon):",
             "proposals": [
                 "noble",
-                "jammy",
-                "focal"
+                "jammy"
             ],
-            "default": "jammy"
+            "default": "noble"
         }
     },
     "platforms": ["Any"],