Updates minimum node version in documentation (vercel#54839)

Updates minimum node version in documentation as we've changed what we require since written.

DX-2046

docs/03-pages/01-building-your-application/06-configuring/08-babel.mdx

@@ -61,5 +61,5 @@ To learn more about the available options for each config, visit babel's [docume
 
 > **Good to know**:
 >
-> - Next.js uses the **current** Node.js version for server-side compilations.
+> - Next.js uses the [**current** Node.js version](https://github.com/nodejs/release#release-schedule) for server-side compilations.
 > - The `modules` option on `"preset-env"` should be kept to `false`, otherwise webpack code splitting is turned off.

docs/03-pages/01-building-your-application/08-upgrading/03-version-13.mdx

@@ -20,7 +20,7 @@ bun add next@latest react@latest react-dom@latest eslint-config-next@latest
 ### v13 Summary
 
 - The [Supported Browsers](/docs/architecture/supported-browsers) have been changed to drop Internet Explorer and target modern browsers.
-- The minimum Node.js version has been bumped from 12.22.0 to 14.18.0, since 12.x has reached end-of-life.
+- The minimum Node.js version has been bumped from 12.22.0 to 16.14.0, since 12.x and 14.x have reached end-of-life.
 - The minimum React version has been bumped from 17.0.2 to 18.2.0.
 - The `swcMinify` configuration property was changed from `false` to `true`. See [Next.js Compiler](/docs/architecture/nextjs-compiler) for more info.
 - The `next/image` import was renamed to `next/legacy/image`. The `next/future/image` import was renamed to `next/image`. A [codemod is available](/docs/pages/building-your-application/upgrading/codemods#next-image-to-legacy-image) to safely and automatically rename your imports.