* Bump semver, webpack and ts-loader

Bumps [semver](https://github.com/npm/node-semver) to 7.5.3 and updates ancestor dependencies [semver](https://github.com/npm/node-semver), [webpack](https://github.com/webpack/webpack) and [ts-loader](https://github.com/TypeStrong/ts-loader). These dependencies need to be updated together.


Updates `semver` from 7.3.2 to 7.5.3
- [Release notes](https://github.com/npm/node-semver/releases)
- [Changelog](https://github.com/npm/node-semver/blob/main/CHANGELOG.md)
- [Commits](npm/node-semver@v7.3.2...v7.5.3)

Updates `webpack` from 4.44.1 to 5.88.0
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v4.44.1...v5.88.0)

Updates `ts-loader` from 8.0.2 to 8.4.0
- [Release notes](https://github.com/TypeStrong/ts-loader/releases)
- [Changelog](https://github.com/TypeStrong/ts-loader/blob/main/CHANGELOG.md)
- [Commits](TypeStrong/ts-loader@v8.0.2...v8.4.0)

---
updated-dependencies:
- dependency-name: semver
  dependency-type: indirect
- dependency-name: webpack
  dependency-type: direct:development
- dependency-name: ts-loader
  dependency-type: direct:development
...

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

* update karma-webpack and webpack config to finish webpack major update

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Lukas Hollaender <lukas.hollaender@yworks.com>