chore: release v8.21.0

[github-actions[bot]]

:rocket: v8.21.0

Make sure to use squash & merge when merging! Once this is merged, another job will kick off automatically and publish the package.

:memo: Changelog

8.21.0 (2024-03-07)

Features

• add message attachment fields for voice messages (#1254) (a9d38a1)

[github-actions[bot]]

Size Change: 0 B

Total Size: 352 kB

ℹ️ View Unchanged

| Filename | Size | | :--- | :---: | | `dist/browser.es.js` | 76 kB | | `dist/browser.full-bundle.min.js` | 46.4 kB | | `dist/browser.js` | 76.9 kB | | `dist/index.es.js` | 76 kB | | `dist/index.js` | 77 kB |

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