build(deps-dev): bump webpack from 4.44.2 to 5.4.0 in /addon (#656)

Bumps [webpack](https://github.com/webpack/webpack) from 4.44.2 to 5.4.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v4.44.2...v5.4.0)

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

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

Author: dependabot[bot]