DEPR: argmin/argmax with all-NA or skipa=False

[jbrockmendel]

• closes API/BUG: Series.argmin/max with all-NaN data returns -1 ? #33941 (Replace xxxx with the GitHub issue number)
• closes API: argmin/argmax behaviour for nullable dtypes with skipna=False #33942
• Tests added and passed if fixing a bug or adding a new feature
• All code checks passed.
• Added type annotations to new arguments/methods/functions.
• Added an entry in the latest doc/source/whatsnew/vX.X.X.rst file if fixing a bug or adding a new feature.

Discussed on last week's dev call.

Analogous deprecation for idxmin/idxmax will be done separately in a follow-up.

[mroeschke]

Thanks @jbrockmendel