Update winrm to fix unicode encoding issues

[sthetz]

Description

This PR updates masterzen/winrm dependency to make use of RunPSWithString function that encodes PowerShell command in UTF-16. This ensures correct encoding of unicode characters passed to powershell.exe

References

Related PRs in winrm repo:

https://github.com/masterzen/winrm/pull/111 https://github.com/masterzen/winrm/pull/97

This PR should also fix:

https://github.com/hashicorp/terraform-provider-ad/issues/172

Community Note

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[hashicorp-cla]

All committers have signed the CLA.