ENH: Add lazy copy for sort_values

[phofl]

• xref ENH / CoW: Use the "lazy copy" (with Copy-on-Write) optimization in more methods where appropriate #49473 (Replace xxxx with the GitHub issue number)
• 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.

[jorisvandenbossche]

Actually, this is failing with ArrayManager (failing CI)

[jorisvandenbossche]

.values on a DataFrame is always a copy for ArrayManager, so the generic obj.values doesn't work here:

Suggested change

	assert np.shares_memory(obj.values, view.values)
	if isinstance(obj, DataFrame):
	assert np.shares_memory(get_array(obj, "a"), get_array(view, "a"))
	else:
	assert np.shares_memory(obj.values, view.values)

[jorisvandenbossche]

You will have to use the same pattern below, so can probably simplify this if we give the Series a name so can use get_array in all cases.

[jorisvandenbossche]

While testing this, I just pushed the changes I was doing locally, hopefully you weren't yet working on it.

[jorisvandenbossche]

ArrayManager never uses Copy-on-Write (we should maybe error when setting those two options at the same time), so this check (and the or using_array_manager two lines above) shouldn't be needed. I suppose the reason it seemingly did give a copy is because of the .values giving a copy

[phofl]

Thx for fixing this, merged main to ensure that the dev builds get through