fix(time): catch OverflowError for non-finite floats (#333)

[MeiSiristhebest]

Description

Fixes #333 where naturaldelta(), naturaltime(), and precisedelta() raise an uncaught OverflowError when passed float('inf') or float('-inf').

Proposed Solution

Expand exception handling in _date_and_delta() and naturaldelta() from (ValueError, TypeError) to (ValueError, TypeError, OverflowError).

Testing Evidence

• Added tests in tests/test_time.py covering float('inf') and float('-inf').
• Full test suite passed (719 passed, 74 skipped, 0 failed).

[hugovk]

Why is this better than the other 5 or so PRs opened for #333?

[MeiSiristhebest]

Good point. #334 handles naturaldelta, but naturaltime and precisedelta also crash on inf because they go through _date_and_delta:

>>> humanize.naturaltime(float("inf"))
OverflowError: cannot convert float infinity to integer
>>> humanize.precisedelta(float("inf"))
OverflowError: cannot convert float infinity to integer

This PR patches _date_and_delta so all three functions handle non-finite floats.

You're right that catching OverflowError broadly was wrong — it suppressed exceptions for large finite floats like 1e30. I've updated this PR to match #334's check using math.isfinite(), restored the docstring, and added a test for the finite overflow behavior.

If you'd prefer to fold the _date_and_delta fix into #334 instead, I'm also happy to close this one.