Pandas BUG/API: Categorical.map & CategoricalIndex.map have no 'na_action' kwarg

• [X] I have checked that this issue has not already been reported.
• [X] I have confirmed this bug exists on the latest version of pandas.
• [X] I have confirmed this bug exists on the master branch of pandas.

Comment From: jbrockmendel

xref #22527

Comment From: topper-123

I'd like to take this on, if that's ok.

Comment From: jbrockmendel

Go for i!