Fix history_stats for timezones with a positive offset from UTC

[bdraco]

Proposed change

datetime.min doesn't have a timezone so when we converted it to utc it was a time before python could represent

Fixes

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 191, in _async_refresh
    self.data = await self._async_update_data()
  File "/usr/src/homeassistant/homeassistant/components/history_stats/coordinator.py", line 94, in _async_update_data
    return await self._history_stats.async_update(None)
  File "/usr/src/homeassistant/homeassistant/components/history_stats/data.py", line 60, in async_update
    previous_period_start = dt_util.as_utc(previous_period_start)
  File "/usr/src/homeassistant/homeassistant/util/dt.py", line 71, in as_utc
    return dattim.astimezone(UTC)
OverflowError: date value out of range

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes history_stats sensor does not work in 2022.5.0b1 #71007
• This PR is related to issue:
• Link to documentation pull request:

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