chore(deps): update rust crate jiff to v0.2.18

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
jiff	dependencies	patch	0.2.17 → 0.2.18

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Release Notes

BurntSushi/jiff (jiff)

v0.2.18

Compare Source

===================
This release ships a sizeable refactor to the RFC 2822, RFC 9110, RC
3339, RFC 9557, ISO 8601 and friendly format printers. Specifically,
they are now all monomorphic internally (instead of being generic over
jiff::fmt::Write) and write to uninitialized buffers. This improves
runtime performance (sometimes dramatically so), and to a more modest
degree, decreases binary size and improves compile times.

This release also includes a bug fix where DateTime::MIN.to_zoned(..)
could panic.

Enhancements:

• #​460:
  Improve runtime performance and binary size of RFC 2822 printer.
• #​461:
  Tweak behavior of printing min/max offsets in RFC 2822 and Temporal printers.
• #​462:
  Export fallible constructors for jiff::SignedDuration.
• #​465:
  Improve runtime performance and binary size of the "friendly" duration printer.
• #​468:
  Improve runtime performance and binary size of the Temporal ISO 8601 duration
  printer.
• #​470:
  Improve runtime performance and binary size of the Temporal ISO 8601 datetime
  printer.
• #​474:
  Improve runtime performance and binary size of Jiff's strftime
  implementation.
• #​477:
  Fix a bug where time zone lookups for civil::DateTime::MIN could panic.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (13e038a) to head (866b6b4).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

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