Workfiles tool: Fix copy of published workfile

[iLLiCiTiT]

Changelog Description

Use correct kwarg for representation path when copying published workfile.

Testing notes:

1. It is possible to copy published workfile using Workfiles tool.

[kalisp]

Copy works.

[LiborBatek]

It gave me an error msg while trying the Copy&Open func in maya host app..

# Traceback (most recent call last):
#   File "C:\Work\REPO\ayon-core\client\ayon_core\tools\workfiles\models\workfiles.py", line 225, in copy_workfile_representation
#     self._host.copy_workfile_representation(
#   File "C:\Work\REPO\ayon-core\client\ayon_core\host\interfaces\workfiles.py", line 1412, in copy_workfile_representation
#     self._copy_workfile(
#   File "C:\Work\REPO\ayon-core\client\ayon_core\host\interfaces\workfiles.py", line 1531, in _copy_workfile
#     self.open_workfile_with_context(
#   File "C:\Work\REPO\ayon-core\client\ayon_core\host\interfaces\workfiles.py", line 1036, in open_workfile_with_context
#     self.open_workfile(filepath)
#   File "C:\Users\lbate\AppData\Local\Ynput\AYON\addons\maya_0.6.10\ayon_maya\api\pipeline.py", line 145, in open_workfile
#     return open_file(filepath)
#            ^^^^^^^^^^^^^^^^^^^
#   File "C:\Users\lbate\AppData\Local\Ynput\AYON\addons\maya_0.6.10\ayon_maya\api\workio.py", line 25, in open_file
#     return cmds.file(filepath, open=True, force=True)

However there appear to be the resulting file v003 after a while...author been missing tho (not related probably)

[iLLiCiTiT]

It gave me an error msg while trying the Copy&Open func in maya host app..

Doesn't look like related to this PR, please verify if the issue happens in develop, if it does please try this in a different DCC.

[LiborBatek]

I have made more testing and also with other host app blender and all seesm good.

It was probably caused by maya error caused by missing plugin...

Good to go I guess...