Get zodiac animal from a Gregorian year
Note: This uses the Gregorian year directly, which may differ
from the lunar year for dates before Chinese New Year.
For precise results, use zodiac with a LunarDateValue.
Gregorian year (e.g., 2024)
Locale code (default: 'zh-CN')
Localized zodiac animal name
Chinese zodiac animal signs. Locale-aware: returns different names for zh-CN ("龙"), zh-TW ("龍"), ja-JP ("辰"), ko-KR ("진"), vi-VN ("Thìn").