chore: release v0.5.1

[MagicalTux]

🤖 New release

• intl: 0.5.0 -> 0.5.1 (✓ API compatible changes)

Changelog

0.5.1 - 2026-07-19

Added

• (collation) zh unihan variant and ko hanja-by-reading
• (collation) Unihan radical-stroke fallback, hu gemination, zh stroke/zhuyin + ko variants
• (datetime) dayPeriod minute-precision, islamic/persian era widths, Japanese pre-Meiji nengo
• (locale) structural validation of extension subtag lengths in canonicalize
• (collation) script [reorder] engine (Cyrillic-first for ru/bg/sr)
• (segment) NFKC pre-normalization on the CJK segmentation path
• (locale) canonicalize -u-/-t- extension keywords in getCanonicalLocales
• (collation) zh pinyin collation via generated Han weight table
• (segment) Khmer and Burmese dictionary word segmentation
• (collation) parser [before]/[import] support; add ja/ko and wide locale coverage
• (segment) CJK (and SEA) dictionary word segmentation
• (segment) dictionary-based word segmentation for Thai (and related scripts)
• (collation) expand per-locale tailoring coverage
• (datetime) localized Japanese-era date formatting
• (calendar) widen Chinese table and add Korean dangi calendar
• (datetime) Chinese calendar formatting with cyclic year names and related year
• (datetime) add formatRange/formatRangeToParts interval formatting
• (calendar) match ICU for Persian calendar (astronomical leap years)
• (locale) resolve CLDR aliases in canonicalize/getCanonicalLocales
• (calendar) add Umm al-Qura (islamic-umalqura) calendar

Fixed

• (ci) format codegen crate and drop private intra-doc link
• (clippy) replace match with ? in rbnf_lookup (stable clippy -D warnings)

Other

• update public-api snapshot for format_japanese_date
• update public-api snapshot for dangi calendar
• update public-api snapshot for format_chinese_date
• update public-api snapshot for interval formatting
• update public-api snapshot for umalqura + locale canonicalize

---

This PR was generated with release-plz.