fix(deps): update dependency i18next to v21.2.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
i18next (source)	21.2.0 -> 21.2.3

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Release Notes

i18next/i18next

### [`v21.2.3`](https://togithub.com/i18next/i18next/blob/master/CHANGELOG.md#​2123) [Compare Source](https://togithub.com/i18next/i18next/compare/v21.2.2...v21.2.3) - fix Intl.PluralRules fallback ### [`v21.2.2`](https://togithub.com/i18next/i18next/blob/master/CHANGELOG.md#​2122) [Compare Source](https://togithub.com/i18next/i18next/compare/v21.2.1...v21.2.2) - log error if Intl.PluralRules API is not available ### [`v21.2.1`](https://togithub.com/i18next/i18next/blob/master/CHANGELOG.md#​2121) [Compare Source](https://togithub.com/i18next/i18next/compare/v21.2.0...v21.2.1) - do skip natural language detection, if user provided keySeparator option is passed [1670](https://togithub.com/i18next/i18next/issues/1670)

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