BUG: resample don't work with non-nanosecond reso

[MarcoGorelli]

Pandas version checks

• I have checked that this issue has not already been reported.

• I have confirmed this bug exists on the latest version of pandas.

• I have confirmed this bug exists on the main branch of pandas.

Reproducible Example

dti = DatetimeIndex([np.datetime64('1750-01-01', 'ns'), np.datetime64('1750-01-03', 'ns')])
ser = Series([1, 2], index=dti)
print(ser.resample('D').sum())

dti = DatetimeIndex([np.datetime64('1750-01-01', 's'), np.datetime64('1750-01-03', 's')])
ser = Series([1, 2], index=dti)
print(ser.resample('D').sum())

Issue Description

The non-nano one throws

Traceback (most recent call last):
  File "/home/marcogorelli/pandas-dev/t.py", line 19, in <module>
    print(ser.resample('D').sum())
          ^^^^^^^^^^^^^^^^^
  File "/home/marcogorelli/pandas-dev/pandas/core/series.py", line 5608, in resample
    return super().resample(
           ^^^^^^^^^^^^^^^^^
  File "/home/marcogorelli/pandas-dev/pandas/core/generic.py", line 8687, in resample
    return get_resampler(
           ^^^^^^^^^^^^^^
  File "/home/marcogorelli/pandas-dev/pandas/core/resample.py", line 1503, in get_resampler
    return tg._get_resampler(obj, kind=kind)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/marcogorelli/pandas-dev/pandas/core/resample.py", line 1661, in _get_resampler
    return DatetimeIndexResampler(
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/marcogorelli/pandas-dev/pandas/core/resample.py", line 168, in __init__
    self.binner, self.grouper = self._get_binner()
                                ^^^^^^^^^^^^^^^^^^
  File "/home/marcogorelli/pandas-dev/pandas/core/resample.py", line 255, in _get_binner
    binner, bins, binlabels = self._get_binner_for_time()
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/marcogorelli/pandas-dev/pandas/core/resample.py", line 1235, in _get_binner_for_time
    return self.groupby._get_time_bins(self.ax)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/marcogorelli/pandas-dev/pandas/core/resample.py", line 1724, in _get_time_bins
    bins = lib.generate_bins_dt64(
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "pandas/_libs/lib.pyx", line 848, in pandas._libs.lib.generate_bins_dt64
    raise ValueError("Values falls after last bin")
ValueError: Values falls after last bin

Expected Behavior

1750-01-01    1
1750-01-02    0
1750-01-03    2
Freq: D, dtype: int64

Installed Versions

INSTALLED VERSIONS

commit : 1d63474
python : 3.11.1.final.0
python-bits : 64
OS : Linux
OS-release : 5.10.102.1-microsoft-standard-WSL2
Version : #1 SMP Wed Mar 2 00:30:59 UTC 2022
machine : x86_64
processor : x86_64
byteorder : little
LC_ALL : None
LANG : en_GB.UTF-8
LOCALE : en_GB.UTF-8

pandas : 2.0.0.dev0+1132.g1d63474321.dirty
numpy : 1.25.0.dev0+319.g46142454e
pytz : 2022.7
dateutil : 2.8.2
setuptools : 65.6.3
pip : 22.3.1
Cython : 0.29.33
pytest : 7.2.0
hypothesis : 6.52.1
sphinx : None
blosc : None
feather : None
xlsxwriter : None
lxml.etree : None
html5lib : None
pymysql : None
psycopg2 : None
jinja2 : None
IPython : 8.8.0
pandas_datareader: None
bs4 : None
bottleneck : None
brotli : None
fastparquet : None
fsspec : None
gcsfs : None
matplotlib : None
numba : None
numexpr : None
odfpy : None
openpyxl : None
pandas_gbq : None
pyarrow : None
pyreadstat : None
pyxlsb : None
s3fs : None
scipy : None
snappy : None
sqlalchemy : None
tables : None
tabulate : None
xarray : None
xlrd : None
zstandard : None
tzdata : None
qtpy : None
pyqt5 : None
None

[MarcoGorelli]

I think is just a matter of adding as_unit here

pandas/pandas/core/resample.py

Lines 1710 to 1718 in 6b10bb8

	binner = labels = date_range(
	freq=self.freq,
	start=first,
	end=last,
	tz=ax.tz,
	name=ax.name,
	ambiguous=True,
	nonexistent="shift_forward",
	)

? I'll make a PR soon-ish