Bump webpack from 4.42.1 to 4.43.0 in /token (solana-labs#9)

Bumps [webpack](https://github.com/webpack/webpack) from 4.42.1 to 4.43.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v4.42.1...v4.43.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>