Powershell PSSession Credential Prompt

# Import the hostnames from the file and connect to each system
Get-Content "c:\tmp\hostnames.txt" | ForEach-Object {  
    $hostname = $_
    $session = New-PSSession -ComputerName $hostname -Credential $null
    
    # Out-comment the "Match Group administrators" and "AuthorizedKeysFile" lines in the sshd_config file 
    Invoke-Command -Session $session -ScriptBlock {
        Write-Host $env:COMPUTERNAME
    }
    # Close the session and write a success message to the console
    Remove-PSSession $session

}

# Import the hostnames from the file and connect to each system
Get-Content "c:\tmp\hostnames.txt" | ForEach-Object {  
    $hostname = $_
    $session = New-PSSession -ComputerName $hostname
    
    # Out-comment the "Match Group administrators" and "AuthorizedKeysFile" lines in the sshd_config file 
    Invoke-Command -Session $session -ScriptBlock {
        Write-Host $env:COMPUTERNAME
    }
    # Close the session and write a success message to the console
    Remove-PSSession $session

}

$configPath = "C:\ProgramData\ssh\sshd_config"  
Invoke-Command -ComputerName (Get-Content "hostnames.txt") -ScriptBlock {  
    (Get-Content $using:configPath) -replace '(?=^\s*(Match Group administrators|AuthorizedKeysFile))','#' | Set-Content $using:configPath  
    Restart-Service sshd
}

$configPath = "C:\ProgramData\ssh\sshd_config"  
$creds = New-Object PSCredential('username',(ConvertTo-SecureString 'Password' -AsPlainText -Force))  
Invoke-Command -ComputerName (Get-Content "hostnames.txt") -Credential $creds -ScriptBlock {  
    (Get-Content $using:configPath) -replace '(?=^\s*(Match Group administrators|AuthorizedKeysFile))','#' | Set-Content $using:configPath  
    Restart-Service sshd
}