fix(deps): update dependency i18next to v21.3.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
i18next (source)	21.2.4 -> 21.3.0

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Release Notes

i18next/i18next

### [`v21.3.0`](https://togithub.com/i18next/i18next/blob/master/CHANGELOG.md#​2130) [Compare Source](https://togithub.com/i18next/i18next/compare/v21.2.6...v21.3.0) - adds support for formats provided by Intl API (number, currency, datetime, relativedate, list) ### [`v21.2.6`](https://togithub.com/i18next/i18next/blob/master/CHANGELOG.md#​2126) [Compare Source](https://togithub.com/i18next/i18next/compare/v21.2.5...v21.2.6) - optimize do skip natural language detection also if user provided nsSeparator option is passed via direct options ### [`v21.2.5`](https://togithub.com/i18next/i18next/blob/master/CHANGELOG.md#​2125) [Compare Source](https://togithub.com/i18next/i18next/compare/v21.2.4...v21.2.5) - do skip natural language detection also if user provided nsSeparator option is passed [1665](https://togithub.com/i18next/i18next/issues/1665)

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