forcats 1.0.1

• fct_cross() now varies the levels in the last factor fastest (@Adam-AKong, #373).
• Functions that create a new factor (e.g. lvls_expand(), lvls_reorder(), fct_lump_n(), fct_drop()) now preserves the class of the original object in addition to the attributes (#83).
• forcats now requires R 4.1.