feat: add ubuntu 25.04

builds/linux/ubuntu/25-04-lts/data/user-data.pkrtpl.hcl

@@ -0,0 +1,29 @@
+#cloud-config
+autoinstall:
+  version: 1
+  early-commands:
+    - sudo systemctl stop ssh
+  locale: ${vm_os_language}
+  keyboard:
+    layout: ${vm_os_keyboard}
+${storage}
+${network}
+  identity:
+    hostname: ubuntu-server
+    username: ${build_username}
+    password: ${build_password_encrypted}
+  ssh:
+    install-server: true
+    allow-pw: true
+  packages:
+    - openssh-server
+    - cloud-init
+  user-data:
+    disable_root: false
+    timezone: ${vm_os_timezone}
+  late-commands:
+    - sed -i -e 's/^#\?PasswordAuthentication.*/PasswordAuthentication yes/g' /target/etc/ssh/sshd_config
+    - echo '${build_username} ALL=(ALL) NOPASSWD:ALL' > /target/etc/sudoers.d/${build_username}
+    - curtin in-target --target=/target -- chmod 440 /etc/sudoers.d/${build_username}
+    - curtin in-target -- apt-get update
+    - curtin in-target -- apt-get install -y qemu-guest-agent