fix(deps): update dependency i18next to v20.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
i18next (source)	20.3.5 -> 20.4.0

---

Release Notes

i18next/i18next

### [`v20.4.0`](https://togithub.com/i18next/i18next/blob/master/CHANGELOG.md#​2040) [Compare Source](https://togithub.com/i18next/i18next/compare/v20.3.5...v20.4.0) * change to return false when a nullable argument is passed [1635](https://togithub.com/i18next/i18next/pull/1635) * make sure parseMissingKeyHandler is called when defaultValue is provided [1354](https://togithub.com/i18next/react-i18next/issues/1354) * types: Fix i18n.use() cannot pass module constructors in TypeScript [1442](https://togithub.com/i18next/i18next/pull/1442) * types: fix TypeScript definition for "loaded" event handler [1637](https://togithub.com/i18next/i18next/issues/1637)

---

Configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box.

---

This PR has been generated by WhiteSource Renovate. View repository job log here.