Allow react i18next v14

[belgattitude]

Checklist

• [x] only relevant code is changed (make a diff before you submit the PR)
• [x] run tests npm run test
• [x] tests are included
• [x] commit message and code follows the Developer's Certification of Origin

Fix

Will fix https://github.com/i18next/next-i18next/issues/2248 and add support for react-i18next v14

[belgattitude]

Thx @adrai :)

[adrai]

included in v15.1.2