BUG: in DataFrame.reset_index() only call maybe_upcast_putmask with ndarrays
- [x] closes #24206
- [x] tests added / passed
- [x] passes `black pandas`
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [x] whatsnew entry

can you merge master and ping on green-ish @jreback Green-ish (the failures are 6 tests from `pandas/tests/tools/test_to_datetime.py`) @jreback all green now thanks @arw2019  Thanks @jreback for reviewing!