[sudo-rs] use --preserve-env instead of -E

[konstruktoid]

Description

After Ubuntu 25.10, sudo -E doesn't work with sudo-rs, see eg trifectatechfoundation/sudo-rs#1299

==> qemu.vm: Provisioning with shell script: ./packer_templates/scripts/ubuntu/networking_ubuntu.sh
==> qemu.vm: sudo: preserving the entire environment is not supported, '-E' is ignored

$ sudo.ws --version
Sudo version 1.9.17p2
Sudoers policy plugin version 1.9.17p2
Sudoers file grammar version 50
Sudoers I/O plugin version 1.9.17p2
Sudoers audit plugin version 1.9.17p2
$ sudo --version
sudo-rs 0.2.13-0ubuntu1
$ export HOME_DIR=/home/serenity
$ sudo.ws --preserve-env=HOME_DIR,http_proxy,https_proxy,no_proxy env | grep '^HOME_DIR'
HOME_DIR=/home/serenity
$ sudo.ws --E env | grep '^HOME_DIR'
sudo.ws: unrecognized option '--E'
$ sudo.ws -E env | grep '^HOME_DIR'
HOME_DIR=/home/serenity
$ sudo -E env | grep '^HOME_DIR'
sudo: preserving the entire environment is not supported, '-E' is ignored
$ sudo --preserve-env=HOME_DIR,http_proxy,https_proxy,no_proxy env | grep '^HOME_DIR'
HOME_DIR=/home/serenity
$ sudo --preserve-env=http_proxy,https_proxy,no_proxy env | grep '^HOME_DIR'
$ sudo.ws --preserve-env=http_proxy,https_proxy,no_proxy env | grep '^HOME_DIR'
$

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (non-breaking change that does not add functionality or fix an issue)

Checklist:

• I have read the CONTRIBUTING document.
• I have run the pre-merge tests locally and they pass.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• If Gemfile.lock has changed, I have used --conservative to do it and included the full output in the Description above.
• All new and existing tests passed.
• All commits have been signed-off for the Developer Certificate of Origin.