Bump the dev-dependencies group with 3 updates

Bumps the dev-dependencies group with 3 updates: [next](https://github.com/vercel/next.js), [eslint-config-next](https://github.com/vercel/next.js/tree/HEAD/packages/eslint-config-next) and [tailwindcss](https://github.com/tailwindlabs/tailwindcss).


Updates `next` from 14.2.20 to 14.2.21
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.2.20...v14.2.21)

Updates `eslint-config-next` from 15.1.0 to 15.1.2
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/commits/v15.1.2/packages/eslint-config-next)

Updates `tailwindcss` from 3.4.16 to 3.4.17
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/v3.4.17/CHANGELOG.md)
- [Commits](tailwindlabs/tailwindcss@v3.4.16...v3.4.17)

---
updated-dependencies:
- dependency-name: next
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: eslint-config-next
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
- dependency-name: tailwindcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>