feat: Add 歲 (U+6B72) as a 旧字体 of 歳 (U+6B73)

[siketyan]

Description

歲 (U+6B72) is a 旧字体 of 歳 (U+6B73). This pull request add the variant to the list; helps conversion between the kanjis.

References:

• https://www.unicode.org/charts/PDF/U4E00.pdf (page 172)
• https://glyphwiki.org/wiki/u6b72

Issue IDs

Closes #665

Modified code locations

• src/data/single_kanji/variant_rule.txt

Confirmation of the acceptable code locations

Yes

Steps to test new behaviors (if any)

N/A

Additional context

N/A

[hiroyuki-komatsu]

Hi siketyan,

We have merged this PR. Thank you for your contribution!