build(deps): bump webpack from 5.3.2 to 5.15.0 in /lib (wtho#53)

Bumps [webpack](https://github.com/webpack/webpack) from 5.3.2 to 5.15.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v5.3.2...v5.15.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]