Mock CommandNotFoundException: Could not find Command Invoke-Sqlcmd about pester HOT 4 OPEN

function Runbook {
  param (
      [Parameter (Mandatory= $true)]
      [string]$TargetDatabaseName,
      [Parameter (Mandatory= $true)]
      [string]$TargetServer
  )
Import-Module Az.Sql

$script = @"the script"

$sqlCredential = Get-AutomationPSCredential -Name "credentials"

$params = @{
  'ServerInstance' = $TargetServer;
  'Database' = $TargetDatabaseName;
  'Username' = $sqlCredential.UserName;
  'Password' = $sqlCredential.GetNetworkCredential().Password;
  'Query' = $script
}

Invoke-Sqlcmd @params

}

BeforeAll {
   $scriptFile = $PSCommandPath.Replace('.Tests.ps1', '.ps1')
   . $scriptFile
}

Describe 'Test Script' {
    BeforeAll {
        Mock Get-AutomationPSCredential -ParameterFilter { $Name -eq 'credentials' } -MockWith {
        $username = 'testUser'
        $password = ConvertTo-SecureString 'MySecretPassword' -AsPlainText -Force
        $credential = New-Object System.Management.Automation.PSCredential ($username, $password)
        return $credential
    }

    Mock Invoke-Sqlcmd -MockWith {  result=1 }
    
    It 'It should not return error' {
        Runbook "test" "test" | Should -Be 1
   }
}

> Invoke-Pester ./runbooks/AnonymiseDB.Tests.ps1 -Output Diagnostic                     
Pester v5.5.0                                           
Discovery: Starting test discovery in 1 test containers. 

Starting discovery in 1 files.
Discovery: Discovering tests in /deducted/runbooks/script.Tests.ps1 
Discovery: Found 1 tests in 12 ms 
Discovery: Processing discovery result objects, to set root, parents, filters etc. 
Discovery found 1 tests in 23ms.
Discovery: Test discovery finished. 
Running tests.

Running tests from '/deducted/runbooks/script.Tests.ps1'
Mock: Setting up parametrized mock for Get-AutomationPSCredential. 
Mock: We are in a block, one time setup or similar. Returning mock table from test block. 
Mock: Resolving command Get-AutomationPSCredential. 
Mock: Searching for command Get-AutomationPSCredential in the script scope. 
Mock: Did not find command Get-AutomationPSCredential in the script scope. 
Describing Test Script
[-] Describe Test Script failed
  CommandNotFoundException: Could not find Command Get-AutomationPSCredential
Tests completed in 163ms
Tests Passed: 0, Failed: 1, Skipped: 0 NotRun: 0
BeforeAll \ AfterAll failed: 1
  - Test Script