Azure portal -> Reset password missing "NOPASSWD" option

If a customer wants to reset administrative user password selecting "Azure portal" -> "Reset password" -> "Reset password" the "VMAccessForLinux" extension is used, this extension will create a new file "/etc/sudoers.d/waagent" if it was not already created, but the line added is missing the required "NOPASSWD" option, example output from my lab:

```
sles-15-sp4-gen2:~ # cat /etc/sudoers.d/waagent
tux ALL = (ALL) ALL
```

Correct line:

```
sles-15-sp4-gen2:~ # cat /etc/sudoers.d/90-cloud-init-users
# Created by cloud-init v. 21.4-150100.8.58.1 on Wed, 20 Sep 2023 09:35:19 +0000

# User rules for tux
tux ALL=(ALL) NOPASSWD:ALL
```

1- Please fix the "VMAccessForLinux" extension accordingly

2- Please implement a check if a user was already created to avoid user entries in file "/etc/sudoers.d/90-cloud-init-users" and also in file "/etc/sudoers.d/waagent" for identical user

Start by locating the VMAccessForLinux implementation that writes /etc/sudoers.d/waagent and review any existing tests for password reset or sudoers handling. Done means the generated entry includes NOPASSWD and an already-created user is not duplicated between /etc/sudoers.d/90-cloud-init-users and /etc/sudoers.d/waagent.

Written by the indexing model from the issue text.