[Nuxt] Update Nuxt 2 EOL date

[NaokiHaba]

Nuxt.js 2 EOL will be extended to June 30, 2024

On December 31st, 2023, Vue 2 will reach End of Life (EOL), and Nuxt 2 will follow on June 30th, 2024.
After that date, Nuxt 2 will continue to be available on the NPM package manager, but will no longer receive updates, such as security and browser compatibility fixes. After that, if you wish to receive updates, please subscribe to HeroDevs' NES (Never-Ending Support) for Vue 2 & Nuxt 2 (Core + Essentials package) .

Relevant page: https://endoflife.date/nuxt
Official: https://v2.nuxt.com/lts/

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[marcwrobel]

LGTM, with one small modification.

Thanks a lot @NaokiHaba for this update.

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