enhance(backend): 絵文字の連合でライセンス欄を相互にやり取りするように (#15182)

* enhance(backend): 絵文字の連合でライセンス欄を相互にやり取りするように

Co-authored-by: Kisaragi Marine <kisaragi.effective@gmail.com>
Co-authored-by: ruruke <123709459+ruruke@users.noreply.github.com>

* fix CHANGELOG.md

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Co-authored-by: Kisaragi Marine <kisaragi.effective@gmail.com>
Co-authored-by: ruruke <123709459+ruruke@users.noreply.github.com>
Co-authored-by: taichan <40626578+tai-cha@users.noreply.github.com>
Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>