BUG/TST/DEPR: Ensure dtype="category" always implies ordered=False & add tests #61118
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dtype="category"always imply ordered=False #61074doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.Issue: Previously, if a Series had ordered=True, using astype("category") would incorrectly preserve the ordering. This was inconsistent and against expectations.
Fix: