Replaced string path in _dh with PosixPath()

[achhina]

• Read through Contribution doc
• Ran tests locally

Here is a fix for GH-12967 (thanks @GalBr for pinpointing the issue), and is related to GH-12515.

Before:

❯ python -m IPython
Python 3.10.0 (default, Nov 10 2021, 11:24:47) [Clang 12.0.0 ]
Type 'copyright', 'credits' or 'license' for more information
IPython 8.4.0.dev -- An enhanced Interactive Python. Type '?' for help.

In [1]: cd ~
/Users/me

In [2]: _dh
Out[2]: [PosixPath('/Users/me/some/path'), '/Users/me']

Now:

❯ python -m IPython                                     
Python 3.10.0 (default, Nov 10 2021, 11:24:47) [Clang 12.0.0 ]
Type 'copyright', 'credits' or 'license' for more information
IPython 8.4.0.dev -- An enhanced Interactive Python. Type '?' for help.

In [1]: cd ~
/Users/me

In [2]: _dh
Out[2]: [PosixPath('/Users/me/some/path'), PosixPath('/Users/me')]

First time contributing here, read through the contribution doc but sorry if there's something I missed!

[Carreau]

First time contributing here, read through the contribution doc but sorry if there's something I missed!

Thanks, apologies for the super late reply. This seem perfect, it's small enough that there is likely no test needed.

Thanks.