[Bug]: Deprecation warning from numpy when setting limits on categorical axis with categories #26596

---------------------------------------------------------------------------
DeprecationWarning                        Traceback (most recent call last)
Cell In [118], line 6
      4 f, ax = plt.subplots()
      5 ax.plot(["a", "b", "c", "d"], [1, 2, 3, 4])
----> 6 ax.set(xlim=("b", "c"))

File ~/miniconda/envs/py310/lib/python3.10/site-packages/matplotlib/artist.py:147, in Artist.__init_subclass__.<locals>.<lambda>(self, **kwargs)
    139 if not hasattr(cls.set, '_autogenerated_signature'):
    140     # Don't overwrite cls.set if the subclass or one of its parents
    141     # has defined a set method set itself.
    142     # If there was no explicit definition, cls.set is inherited from
    143     # the hierarchy of auto-generated set methods, which hold the
    144     # flag _autogenerated_signature.
    145     return
--> 147 cls.set = lambda self, **kwargs: Artist.set(self, **kwargs)
    148 cls.set.__name__ = "set"
    149 cls.set.__qualname__ = f"{cls.__qualname__}.set"

File ~/miniconda/envs/py310/lib/python3.10/site-packages/matplotlib/artist.py:1226, in Artist.set(self, **kwargs)
   1222 def set(self, **kwargs):
   1223     # docstring and signature are auto-generated via
   1224     # Artist._update_set_signature_and_docstring() at the end of the
   1225     # module.
-> 1226     return self._internal_update(cbook.normalize_kwargs(kwargs, self))

File ~/miniconda/envs/py310/lib/python3.10/site-packages/matplotlib/artist.py:1218, in Artist._internal_update(self, kwargs)
   1211 def _internal_update(self, kwargs):
   1212     """
   1213     Update artist properties without prenormalizing them, but generating
   1214     errors as if calling `set`.
   1215 
   1216     The lack of prenormalization is to maintain backcompatibility.
   1217     """
-> 1218     return self._update_props(
   1219         kwargs, "{cls.__name__}.set() got an unexpected keyword argument "
   1220         "{prop_name!r}")

File ~/miniconda/envs/py310/lib/python3.10/site-packages/matplotlib/artist.py:1194, in Artist._update_props(self, props, errfmt)
   1191             if not callable(func):
   1192                 raise AttributeError(
   1193                     errfmt.format(cls=type(self), prop_name=k))
-> 1194             ret.append(func(v))
   1195 if ret:
   1196     self.pchanged()

File ~/miniconda/envs/py310/lib/python3.10/site-packages/matplotlib/axes/_base.py:3646, in _AxesBase.set_xlim(self, left, right, emit, auto, xmin, xmax)
   3644         raise TypeError("Cannot pass both 'right' and 'xmax'")
   3645     right = xmax
-> 3646 return self.xaxis._set_lim(left, right, emit=emit, auto=auto)

File ~/miniconda/envs/py310/lib/python3.10/site-packages/matplotlib/axis.py:1239, in Axis._set_lim(self, v0, v1, emit, auto)
   1235     _api.warn_external(
   1236         f"Attempting to set identical low and high {name}lims "
   1237         f"makes transformation singular; automatically expanding.")
   1238 reverse = bool(v0 > v1)  # explicit cast needed for python3.8+np.bool_.
-> 1239 v0, v1 = self.get_major_locator().nonsingular(v0, v1)
   1240 v0, v1 = self.limit_range_for_scale(v0, v1)
   1241 v0, v1 = sorted([v0, v1], reverse=bool(reverse))

File ~/miniconda/envs/py310/lib/python3.10/site-packages/matplotlib/ticker.py:1649, in Locator.nonsingular(self, v0, v1)
   1635 def nonsingular(self, v0, v1):
   1636     """
   1637     Adjust a range as needed to avoid singularities.
   1638 
   (...)
   1647     - Otherwise, ``(v0, v1)`` is returned without modification.
   1648     """
-> 1649     return mtransforms.nonsingular(v0, v1, expander=.05)

File ~/miniconda/envs/py310/lib/python3.10/site-packages/matplotlib/transforms.py:2855, in nonsingular(vmin, vmax, expander, tiny, increasing)
   2851     swapped = True
   2853 # Expand vmin, vmax to float: if they were integer types, they can wrap
   2854 # around in abs (abs(np.int8(-128)) == -128) and vmax - vmin can overflow.
-> 2855 vmin, vmax = map(float, [vmin, vmax])
   2857 maxabsvalue = max(abs(vmin), abs(vmax))
   2858 if maxabsvalue < (1e6 / tiny) * np.finfo(float).tiny:

DeprecationWarning: Conversion of an array with ndim > 0 to a scalar is deprecated, and will error in future. Ensure you extract a single element from your array before performing this operation. (Deprecated NumPy 1.25.)