CLEAN: Fix overloads for Series.__new__() to be consistent in argument ordering.

[Dr-Irv]

See comment 1 at microsoft/pyright#5178 (comment)

The pd.Series.new method has some pretty glaring bugs. Some of the overrides swap the index and dtype parameters. I presume this was done to accommodate the case where the dtype argument is specified by keyword. This can be handled properly by retaining the correct parameter order and adding a keyword-only separator (*). Let me know if you need more details. I definitely recommend addressing this bug because it will lead to incorrect type evaluations.