AWSPowerShellModuleScript please add argument for Powershell Core

**Describe the solution you'd like**

Please add support for Powershell Core (version 6/7), and implement it the same way that it works for the native Powershell tasks in Azure DevOps. Suggested would be to add an argument under inputs called "pwsh" as a boolean value to enable the task to run as Powershell Core instead of Windows Powershell. This article documents how it's done for task PowerShell@2

https://docs.microsoft.com/en-us/azure/devops/pipelines/tasks/utility/powershell?view=azure-devops

**Additional context**

Normally the task runs as Windows Powershell 5.1:

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"

With pwsh set to true, it runs as Powershell Core:

"C:\Program Files\PowerShell\7\pwsh.exe"

Start by locating the AWSPowerShellModuleScript task implementation and its inputs, then compare its invocation with the documented Azure DevOps PowerShell@2 behavior. Verify how the task currently selects Windows PowerShell and define completion as accepting a boolean pwsh input that runs the task with PowerShell Core when enabled, while preserving the existing default.

Written by the indexing model from the issue text.