Fix bug in bicep path (#109)

# Pull Request

## Issue

N/A

## Description

Fix an incorrect path

## Testing

You can see the Bicep tests passing here:
https://github.com/Azure/accelerator-bootstrap-modules/actions/runs/8375595350

## License

By submitting this pull request, I confirm that my contribution is made
under the terms of the projects associated license.

src/ALZ/Private/Legacy-Bicep/New-ALZEnvironmentBicep.ps1

@@ -42,7 +42,7 @@ function New-ALZEnvironmentBicep {
         Set-ComputedConfiguration -configuration $configuration | Out-String | Write-Verbose
         Edit-ALZConfigurationFilesInPlace -alzEnvironmentDestination $targetDirectory -configuration $configuration | Out-String | Write-Verbose
         Build-ALZDeploymentEnvFile -configuration $configuration -Destination $targetDirectory -version $upstreamReleaseVersion | Out-String | Write-Verbose
-        Add-AvailabilityZonesBicepParameter -alzEnvironmentDestination $alzEnvironmentDestination -configFile $bicepConfig| Out-String | Write-Verbose
+        Add-AvailabilityZonesBicepParameter -alzEnvironmentDestination $targetDirectory -configFile $bicepConfig | Out-String | Write-Verbose
 
         if($local) {
             $isGitRepo = Test-ALZGitRepository -alzEnvironmentDestination $targetDirectory -autoApprove:$autoApprove.IsPresent