NPM(deps-dev): Bump image-webpack-loader from 7.0.1 to 8.1.0

Bumps [image-webpack-loader](https://github.com/tcoopman/image-webpack-loader) from 7.0.1 to 8.1.0.
- [Release notes](https://github.com/tcoopman/image-webpack-loader/releases)
- [Changelog](https://github.com/tcoopman/image-webpack-loader/blob/master/CHANGELOG.md)
- [Commits](tcoopman/image-webpack-loader@v7.0.1...v8.1.0)

---
updated-dependencies:
- dependency-name: image-webpack-loader
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]