DEPR: Series(dt64naive, dtype=dt64tz) -> will match DatetimeIndex
- [ ] xref #33401
- [x] tests added / passed
- [x] Ensure all linting tests pass, see [here](https://pandas.pydata.org/pandas-docs/dev/development/contributing.html#code-standards) for how to run them
- [x] whatsnew entry

I think this is the last deprecation needed for the constructor/astype consistency.