fix: remove references to adminstrator users in script (#19318)

> Related issue: #18461

Non-functional change; there were some comments in the embedded script
that referenced Administrator accounts. These references needed to be
removed, as the script can lock out all accounts now.

# Checklist for submitter

If some of the following don't apply, delete the relevant line.

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- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
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files](https://fleetdm.com/docs/contributing/committing-changes#changes-files)
for more information.
- [x] Manual QA for all new/changed functionality

changes/jve-fix-lock-script-typo

@@ -0,0 +1 @@
+- Removes references to Administrator accounts in the comments of the Windows lock script.

ee/server/service/embedded_scripts/windows_lock.ps1

@@ -1,4 +1,4 @@
-# PowerShell script to log off all non-administrative users and disable their accounts
+# PowerShell script to log off all users and disable their accounts
 
 # Log off all users
 $loggedOffUsers = @{}
@@ -32,4 +32,4 @@ Get-LocalUser | Where-Object { $_.Enabled -eq $true } | ForEach-Object {
     Write-Host "Disabled account for $username"
 }
 
-Write-Host "All non-administrative users have been logged out and their accounts disabled."
+Write-Host "All users have been logged out and their accounts disabled."