tests(packer): cleanup cloud init files.

tests/packer/init/ubuntu-desktop.user-data.yml

@@ -27,7 +27,7 @@ packages:
   - spice-vdagent
   - terminator
   - apparmor-profiles
-  - build-essential 
+  - build-essential
   - config-package-dev
   - debhelper
   - devscripts
@@ -42,7 +42,6 @@ snap:
     - install snapd-desktop-integration
 
 runcmd:
-
   # Remove default filesystem and related tools not used with the suggested
   # storage layout. These may yet be required if different partitioning schemes
   # are used.
@@ -64,7 +63,6 @@ runcmd:
   - apt-get -y autoremove
 
 write_files:
-
   # Setup shared directory
   - path: /etc/fstab
     append: true
@@ -72,8 +70,8 @@ write_files:
       0a31bc478ef8e2461a4b1cc10a24cc4 /home/user/Projects/apparmor.d  virtiofs defaults  0  1
 
   - path: /etc/systemd/network/20-wired.network
-    owner: 'root:root'
-    permissions: '0644'
+    owner: "root:root"
+    permissions: "0644"
     content: |
       [Match]
       Name=en*