Bump tailwindcss from 3.4.15 to 3.4.16 in /packages/nextjs

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss) from 3.4.15 to 3.4.16.
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/v3.4.16/CHANGELOG.md)
- [Commits](tailwindlabs/tailwindcss@v3.4.15...v3.4.16)

---
updated-dependencies:
- dependency-name: tailwindcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>